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William Stephen Belichick ( or ; born April 16, 1952) is an American football coach who serves as the head coach of the New England Patriots of the National Football League (NFL). He exercises extensive authority over the Patriots' football operations, effectively making him the team's general manager as well. He holds numerous coaching records, including winning a record six Super Bowls as the head coach of the New England Patriots, and two more as defensive coordinator for the New York Giants. He is widely considered to be one of the greatest coaches in NFL history by current and former players, his peers, and the press.

Belichick began his coaching career in 1975 and became the defensive coordinator for New York Giants head coach Bill Parcells by 1985. Parcells and Belichick won two Super Bowls together before Belichick left to become the head coach of the Cleveland Browns in 1991. He remained in Cleveland for five seasons but was fired following the team's 1995 season. He then rejoined Parcells, first in New England, where the team lost Super Bowl XXXI, and later with the New York Jets.

After being named head coach of the Jets, Belichick resigned after only one day on the job to accept the head coaching job for the New England Patriots on January 27, 2000. Since then, he has led the Patriots to 16 AFC East division titles, 13 appearances in the AFC Championship Game, and nine Super Bowl appearances, with a record six wins. Belichick has won eight Super Bowl titles in total from his combined time as an assistant and head coach.

Belichick is the NFL's longest-tenured active head coach, as well as the first all-time in playoff coaching wins with 31 and third in regular season coaching wins in the NFL with 261. He is one of only three head coaches who have won six NFL titles. He was named the AP NFL Coach of the Year for the 2003, 2007, and 2010 seasons.

Early life
Belichick was born on April 16, 1952, in Nashville, Tennessee, the son of Jeannette (Munn) and Steve Belichick (born Stephen Biličić). Bill was named after College Football Hall of Fame coach Bill Edwards, who was his godfather. Belichick is of Croatian ancestry, and his paternal grandparents, Ivan Biličić and Marija (Mary) Barković, emigrated from the Croatian village of Draganić, Karlovac, in 1897, settling in Monessen, Pennsylvania.

He was raised in Annapolis, Maryland, where his father was an assistant football coach at the United States Naval Academy. Belichick has cited his father as one of his most important football mentors, and Belichick often studied football with him. Bill reportedly learned to break down game films at a young age by watching his father and the Navy staff do their jobs. He graduated from Annapolis High School in 1970 with classmate Sally Brice-O'Hara. While there, he played football and lacrosse, with the latter being his favorite sport. He enrolled at Phillips Academy in Andover, Massachusetts, for a postgraduate year, with the intention of improving his grades and test scores to be admitted into a quality college. The school honored him 40 years later by inducting him into its Athletics Hall of Honor in 2011.

Belichick subsequently attended Wesleyan University in Middletown, Connecticut, where he played center and tight end. In addition to being a member of the football team, he played lacrosse and squash, serving as the captain of the lacrosse team during his senior season. A member of Chi Psi fraternity, he earned a bachelor's degree in economics in 1975. He would eventually be part of the inaugural induction class into the university's Athletics Hall of Fame in spring 2008.

Early coaching positions
After graduating, Belichick took a $25-per-week job as an assistant to Baltimore Colts head coach Ted Marchibroda in 1975. In 1976, he joined the Detroit Lions as their assistant special teams coach before adding tight ends and wide receivers to his coaching duties in 1977. He spent the 1978 season with the Denver Broncos as their assistant special teams coach and defensive assistant.

New York Giants (1979–1990)
In 1979, Belichick began a 12-year stint with the New York Giants alongside head coach Ray Perkins as a defensive assistant and special teams coach. He added linebackers coaching to his duties in 1980 and was named defensive coordinator in 1985 under head coach Bill Parcells, who had replaced Perkins in 1983. The Giants won Super Bowl XXI and Super Bowl XXV following the 1986 and 1990 seasons. His defensive game plan from the New York Giants' 20–19 upset of the Buffalo Bills in Super Bowl XXV has been placed in the Pro Football Hall of Fame.

Cleveland Browns (1991–1995)
From 1991 until 1995, Belichick was the head coach of the Cleveland Browns. During his tenure in Cleveland, he compiled a 36–44 record, leading the team to the playoffs in 1994, his only winning year with the team. Coincidentally, his one playoff victory during his Browns tenure was achieved against the New England Patriots in the Wild Card Round during that postseason. In Belichick's last season in Cleveland, the Browns finished 5–11, despite starting 3–1. One of his most controversial moves was cutting quarterback Bernie Kosar midway through the 1993 season. Kosar was signed by the Dallas Cowboys two days later and won a Super Bowl with the Cowboys in Super Bowl XXVIII. In November 1995, in the middle of the ongoing football season, Browns owner Art Modell had announced he would move his franchise to Baltimore after the season. After first being given assurances that he would coach the new team that would later become the Baltimore Ravens, Belichick was instead fired on February 14, 1996, one week after the shift was officially announced.

New England Patriots (1996)
After his dismissal by the Cleveland Browns, Belichick served under Parcells again as assistant head coach and defensive backs coach with the Patriots for the 1996 season. The Patriots finished with an 11–5 record and won the AFC Championship over the Jacksonville Jaguars, but they lost to the Green Bay Packers in Super Bowl XXXI amid rumors of Parcells's impending defection.

New York Jets (1997–1999)
Belichick had two stints as the head coach of the New York Jets without ever coaching a game.

In February 1997, Belichick, who had been an assistant coach under Bill Parcells with the New York Giants and New England Patriots, was named the Jets interim head coach while the Jets and Patriots continued to negotiate compensation to release Parcells from his contract with the Patriots and allow Parcells to coach the Jets. Six days later, the Patriots and Jets reached an agreement that allowed Parcells to coach the Jets, and Belichick became the team's assistant head coach and defensive coordinator.

When Parcells stepped down as head coach after the 1999 season, he had already arranged with team management to have Belichick succeed him. However, Belichick would be the New York Jets' head coach for only one day. When Belichick was introduced as head coach to the media—the day after his hiring was publicized—he turned it into a surprise resignation announcement. Before taking the podium, he scrawled a resignation note on a napkin that read, in its entirety, "I resign as HC of the NYJ." He then delivered a half-hour speech explaining his resignation to the assembled press corps.

Soon after this bizarre turn of events, he was introduced as the Patriots' 12th full-time head coach, succeeding the recently fired Pete Carroll. The Patriots had tried to hire him away from Parcells/the Jets in the past. Parcells and the Jets claimed that Belichick was still under contract to the Jets, and demanded compensation from the Patriots. NFL Commissioner Paul Tagliabue agreed, and the Patriots gave the Jets a first-round draft pick in 2000 in exchange for the right to hire Belichick.

New England Patriots (2000–present)
Soon after hiring Belichick, owner Robert Kraft gave him near-complete control over the team's football operations, effectively making him the team's general manager as well. Until 2009, Belichick split many of the duties normally held by a general manager on other clubs with player personnel director Scott Pioli, though Belichick had the final say on football matters. Pioli left for the Kansas City Chiefs after the 2008 season.

The Patriots went 5–11 in the 2000 regular season and missed the playoffs. To date, this is Belichick's only losing season with the Patriots.

2001–2004
In 2001, the Patriots went 11–5 in the regular season, and defeated the Oakland Raiders (in the "Tuck Rule Game") and Pittsburgh Steelers on the way to the Super Bowl. In Super Bowl XXXVI, Belichick's defense held the St. Louis Rams' offense, which had averaged 31 points during the season, to 17 points, and the Patriots won on a last second field goal by Adam Vinatieri. The win was the first Super Bowl championship in Patriots history.

The following season (2002)—the first in Gillette Stadium—the Patriots went 9–7 and missed the playoffs. New England finished with the same record as the New York Jets and the Miami Dolphins, but the Jets won the AFC East title as a result of the third tiebreaker (record among common opponents).

The Patriots' 2003 season started with a 31–0 loss to the Buffalo Bills in Week 1, a few days after they released team defensive captain Lawyer Milloy. However, they dominated through the remainder of the season to finish 14–2, setting a new franchise record for wins in a season. In the final week of the regular season, the Patriots avenged their loss to the Bills by the same 31–0 score. They defeated the Tennessee Titans in the Divisional Round. Playing against the Indianapolis Colts and Co-MVP Peyton Manning in the AFC Championship (Steve McNair of the Titans was also Co-MVP), the Patriots recorded four interceptions, and advanced to Super Bowl XXXVIII, where they defeated the Carolina Panthers 32–29 on a late Adam Vinatieri field goal. Belichick also was awarded with the NFL Coach of the Year Award.

In 2004, the Patriots once again finished with a 14–2 record, and they defeated the Indianapolis Colts in the Divisional Round. They opened the season at 6–0, which combined with the 15 straight wins to end the previous season, gave New England 21 consecutive victories to break the record for most wins in a row formerly held by the Miami Dolphins with 18 straight victories in the 1972 and 1973 seasons. They defeated the Pittsburgh Steelers in the AFC Championship. In Super Bowl XXXIX, the Patriots beat the Philadelphia Eagles and became only the second team to win three Super Bowls in four years. Belichick is the only coach to accomplish the feat as the Dallas Cowboys had two head coaches in the stretch they won three of four from 1992–1995.

2005–2009
With a new defensive coordinator in Eric Mangini and no named offensive coordinator, the Patriots went 10–6 in the 2005 season and defeated the Jacksonville Jaguars in the Wild Card Round before losing to the Denver Broncos in the Divisional Round. Earlier, with a season-opening win over the Oakland Raiders, Belichick notched his 54th win with the Patriots, passing Mike Holovak as the winningest coach in Patriots history.

The Patriots finished with a 12–4 record in the 2006 season and defeated the New York Jets by a score of 37–16 in the Wild Card Round. They then beat the San Diego Chargers the next week in the Divisional Round, before losing to the eventual Super Bowl XLI winner Indianapolis Colts in the AFC Championship by a score of 38–34. The Patriots led 21–3 mid-way during the second quarter, but the Colts mounted one of the great comebacks in playoff history.



In 2007, Belichick led the Patriots to the first perfect regular season since the introduction of the 16-game regular season schedule in 1978, only the fourth team to do so in National Football League history after the 1934 and 1942 Chicago Bears and 1972 Miami Dolphins. In the Divisional Round of the playoffs, they defeated the Jacksonville Jaguars by a score of 31–20. In the AFC Championship, the Patriots defeated the San Diego Chargers by a score of 21–12. The Patriots were upset in Super Bowl XLII by the New York Giants, his former team, due to the defense allowing a famous play to David Tyree near the end of regulation The Patriots' failure to attain a "perfect season" (undefeated and untied, including playoffs) preserved the Miami Dolphins as the sole team to do so, having finished their 1972 regular season at 14–0 and having won three games in the playoffs. Only two other teams in professional football have recorded a perfect season—the 1948 Cleveland Browns (14–0) of the then All-America Football Conference and the 1948 Calgary Stampeders (12–0) of the Canadian Football League. No team in the former American Football League had a perfect season.

In the Patriots' 2008 season-opener against the Kansas City Chiefs, quarterback Tom Brady suffered a season-ending injury in the first quarter. Backup quarterback Matt Cassel was named the starter for the remainder of the season. However, with a win in Week 2, the Patriots broke their own record for regular season wins in a row with 21 (2006–08). After losing over a dozen players to the injured reserve list, including Rodney Harrison, Adalius Thomas, and Laurence Maroney, the Patriots still managed their league-leading eighth consecutive season with a winning record, going 11–5. Nevertheless, the Patriots, who finished second in the AFC East, missed the playoffs for the first time since 2002, losing on tiebreakers to the Miami Dolphins (who won the division on the fourth tiebreaker, better conference record) and the Baltimore Ravens (who beat out the Patriots for the last playoff spot due to a better conference record). The 1985 Denver Broncos are the only other 11-win team to miss the playoffs in a 16-game season.

In 2009, with a fully healthy Tom Brady back as the starting quarterback, Belichick was able to guide the Patriots to yet another AFC East division title with a 10–6 record. However, the Patriots lost to the Baltimore Ravens in the Wild Card Round.

2010–present
In the 2010 season, Belichick and the Patriots finished with a 14–2 record for the top seed in the AFC. However, their postseason ended quickly with a 28–21 loss to the New York Jets in the Divisional Round.

In the 2011 season, the Patriots topped the AFC with a 13–3 record. Following a victory over the Denver Broncos in the Divisional Round, the Patriots won the AFC Championship game beating the Baltimore Ravens 23–20 when the Ravens failed to score a touchdown and Baltimore's kicker, Billy Cundiff, missed a routine 32-yard field goal attempt to tie the game and send it into overtime. This sent New England to their fifth Super Bowl under Belichick. In Super Bowl XLVI, the Patriots lost in the Super Bowl XLII rematch to the New York Giants by a score of 21–17.



On September 26, 2012, following a 31–30 loss to the Baltimore Ravens, Belichick was fined $50,000 for grabbing a replacement official's arm while asking for more specific clarity on a ruling after Baltimore had narrowly converted a last-second field goal attempt to secure the win. The Patriots finished the 2012 regular season with a 12–4 record. In the Divisional Round, they defeated the Houston Texans by a score of 41–28 and made it to the AFC Championship, where they lost to the Baltimore Ravens by a score of 28–13, ending their season.

Belichick's Patriots began the 2013 season with much upheaval on the offensive side of the ball with the injury of Rob Gronkowski, the arrest and subsequent release of Aaron Hernandez, the departures of Wes Welker to the Denver Broncos and Danny Woodhead to the San Diego Chargers in free agency, and the release of Brandon Lloyd. To replace them, the Patriots signed Danny Amendola in free agency, drafted rookies Aaron Dobson and Josh Boyce, and signed undrafted rookie free agent Kenbrell Thompkins. The team ended the season with a 12–4 record, winning the AFC East and securing a playoff berth and a first-round bye, seeding second in the AFC standings. In the Divisional Round, they defeated the Indianapolis Colts by a score of 43–22. They lost to the Denver Broncos in the AFC Championship by a score of 26–16.

In the 2014 season, Belichick's Patriots recorded a 12–4 record for the third straight season. In the Divisional Round, they defeated the Baltimore Ravens by a score of 35–31. In the AFC Championship, they defeated the Indianapolis Colts by a score of 45–7. They reached Super Bowl XLIX, where they defeated the Seattle Seahawks by a score of 28–24. With his fourth championship as head coach, Belichick tied Chuck Noll for most wins by a head coach in a Super Bowl.



In the 2015 season, Belichick's Patriots recorded a 12–4 record for the fourth straight season. They defeated the Kansas City Chiefs in the Divisional Round. In the AFC Championship, they lost to the eventual Super Bowl 50 champion Denver Broncos by a score of 20–18.

In the 2016 season, Belichick's Patriots recorded a 14–2 record, which earned them the #1 seed for the AFC playoffs. In the Divisional Round, they defeated the Houston Texans. In the AFC Championship, they defeated the Pittsburgh Steelers. They reached Super Bowl LI, where they defeated the Atlanta Falcons in a comeback victory by a score of 34–28 in overtime. The Patriots were down 28–3 at one point in the third quarter. With the victory, Belichick won his record fifth Super Bowl title as a head coach.

In the 2017 season, Belichick's Patriots went 13–3, setting an NFL record eighth consecutive 12-or-more-win seasons, capturing their ninth consecutive AFC East title and their 15th of the last 17 seasons. They defeated the Tennessee Titans in the Divisional Round by a score of 35–14, and the Jacksonville Jaguars in the AFC Championship by a score of 24–20, claiming their second AFC title in two years, while also extending their record of consecutive AFC Championship appearances with seven. Super Bowl LII was Belichick's eighth title game as head coach and his eleventh overall in any capacity, which was also the Patriot's tenth appearance, all extending NFL records. The Ringer wrote that Belichick's "team is different from many of New England's famous teams from the previous decade: The first iteration of the Patriots dynasty relied on defense. This year, they are 29th in yards allowed (though fifth in points allowed) and instead have perfected the art of situational football". The latter Patriots teams have been noted for mounting late comebacks in playoff games.

However, the Patriots fell to the Philadelphia Eagles in Super Bowl LII, 41–33, as Nick Foles repeated his dominant NFC Championship game performance and led Philadelphia to victory in a high-scoring game. The Patriots were down early, as they have been in most of their Super Bowl wins. However, they could not make a comeback this time, although they came very close. The Eagles defense strip-sacked Tom Brady to get the ball back with about 2 minutes to go in the 4th quarter. The Patriots did get the ball again before the end of the game, but they ran out of time to score.

In the 2018 season, Belichick's Patriots went 11–5 failing to win more than 12 games for the first time since 2009. The Patriots still captured their 10th consecutive AFC East Title and their 16th of the last 18 years. They defeated the Los Angeles Chargers in the Divisional Round by a score of 41–28 and the Kansas City Chiefs in the AFC Championship 37–31 in a tough overtime game in Kansas City to advance to their third straight Super Bowl. In Super Bowl LIII, the Patriots defeated the Los Angeles Rams 13–3 to give Belichick his 6th Super Bowl championship as a head coach and his eighth overall to have the most Super Bowl rings in NFL History. His six championships matched both George Halas and Curly Lambeau for most championships as a coach. The Patriots defense held the Rams offense to 260 total yards.

On May 13, 2019, Belichick announced that he would assume another role as the Patriots defensive coordinator starting the 2019 season On October 27, 2019, with the Patriots' win over the Cleveland Browns, Belichick obtained his 300th win as a head coach.

Sideline videotaping controversy
In an incident dubbed "Spygate," on September 9, 2007, NFL security caught a Patriots video assistant taping the New York Jets' defensive signals from the sidelines, which is not an approved location. The NFL rules state "No video recording devices of any kind are permitted to be in use in the coaches' booth, on the field, or in the locker room during the game." Jets coach Eric Mangini, a former Patriots assistant, tipped off league officials that the Patriots might have been filming their signals. After the game, the Jets formally complained to the league.

On September 13, the NFL fined Belichick $500,000—the largest fine ever imposed on a coach in the league's 87-year history, and fined the Patriots $250,000. Additionally, the Patriots forfeited their first round draft pick in the 2008 NFL Draft. Roger Goodell, a former employee of the Jets, said that he fined the Patriots as a team because Belichick exercises so much control over the Patriots' on-field operations that "his actions and decisions are properly attributed to the club." Goodell considered suspending Belichick, but decided that taking away draft picks would be more severe in the long run. Gary Myers, New York Daily News columnist, stated Belichick should have been suspended by Goodell for the Patriots' next game against the Jets.

Belichick later issued the following statement:

"I accept full responsibility for the actions that led to tonight's ruling. Once again, I apologize to the Kraft family and every person directly or indirectly associated with the New England Patriots for the embarrassment, distraction and penalty my mistake caused. I also apologize to Patriots fans and would like to thank them for their support during the past few days and throughout my career. [...] As the Commissioner acknowledged, our use of sideline video had no impact on the outcome of last week's game. We have never used sideline video to obtain a competitive advantage while the game was in progress. [...] Part of my job as head coach is to ensure that our football operations are conducted in compliance of the league rules and all accepted interpretations of them. My interpretation of a rule in the Constitution and Bylaws was incorrect. [...] With tonight's resolution, I will not be offering any further comments on this matter. We are moving on with our preparations for Sunday's game."

The sanctions against Belichick were the harshest imposed on a head coach in league history until the New Orleans Saints' Sean Payton was suspended for the entire 2012 season for covering up a scheme in which bounties were paid for deliberately knocking opponents out of games.

Following the incident and its fallout, Belichick led the Patriots to a perfect 16–0 regular season record, and was awarded the 2007 NFL Coach of the Year Award, as voted on by the Associated Press.

Overall record in New England
Under Belichick, the Patriots have a regular-season record of 225–79–0 over 19 seasons. Belichick is far and away the winningest coach in Patriots history; his 225 wins with the franchise are more than quadruple those of runner-up Mike Holovak. Belichick also has compiled a 30–10 record in the playoffs with New England, and 6–3 in Super Bowls. He has led the Patriots to 16 division titles, including five consecutive titles from 2003 to 2007 and ten consecutive titles from 2009 to 2018. Under Belichick, the team only missed the playoffs in 2000 and on tiebreakers in 2002 and 2008. Although missing qualifications for playoffs in 2002, the Patriots finished 2nd in the AFC east.

Head coaching record
Coaching record accurate as of the end of 2018 regular season.

Coaching tree
Bill Belichick has worked under five head coaches:
 * Ted Marchibroda, Baltimore Colts (1975)
 * Tommy Hudspeth, Detroit Lions (1976–1977)
 * Red Miller, Denver Broncos (1978)
 * Ray Perkins, New York Giants (1979–1982)
 * Bill Parcells, New York Giants (1983–1990), New England Patriots (1996), New York Jets (1997–1999)

Nine of Belichick's assistant coaches have become NFL head coaches:
 * Romeo Crennel, Cleveland Browns (2005–2008), Kansas City Chiefs (2011–2012)
 * Al Groh, New York Jets (2000)
 * Josh McDaniels, Denver Broncos (2009–2010)
 * Eric Mangini, New York Jets (2006–2008), Cleveland Browns (2009–2010)
 * Nick Saban, Miami Dolphins (2005–2006)
 * Jim Schwartz, Detroit Lions (2009–2013)
 * Bill O'Brien, Houston Texans (2014–present)
 * Matt Patricia, Detroit Lions (2018–present)
 * Brian Flores, Miami Dolphins (2019–present)

Seven assistant coaches have become NCAA Division I head coaches:
 * Kirk Ferentz, Iowa (1999–present)
 * Ferentz's son Brian Ferentz, who played for his father at Iowa from 2001 to 2005, joined the Patriots scouting department in 2008 and later their coaching staff in 2009. He left New England to join his father's staff in 2012.
 * Al Groh, Wake Forest (1981–1986), Virginia (2001–2009)
 * Pat Hill, Fresno State (1997–2011)
 * Bill O'Brien, Penn State (2012–2014)
 * Nick Saban, Michigan State (1995–1999), LSU (2000–2004), Alabama (2007–present)
 * Josh McDaniels was a graduate assistant under Saban in 1999 before joining the Patriots.
 * Charlie Weis, Notre Dame (2005–2009), Kansas (2011–2014)
 * A graduate assistant for Weis at Notre Dame, Patrick Graham, is an assistant coach for Belichick. Former Patriots assistant Shane Waldron also served as a graduate assistant under Weis.
 * Pete Mangurian, Columbia (2012–2014)

Two of Belichick's former players have become NFL head coaches:
 * Mike Vrabel, Tennessee Titans (2018–present)
 * Kliff Kingsbury, Arizona Cardinals (2019–present)

One assistant coach has become a CFL head coach:
 * John Hufnagel, Calgary Stampeders (2008–2015)

Nineteen assistant coaches or executives under Belichick have become assistant head coaches, coordinators, or executives in the NFL:
 * Jeff Davidson, offensive coordinator of the Carolina Panthers (2007–2010), assistant head coach and offensive coordinator for the Cleveland Browns (2006)
 * Thomas Dimitroff, general manager for the Atlanta Falcons (2008–present)
 * John Mitchell, assistant head coach of the Pittsburgh Steelers (2007–present)
 * Scott Pioli, general manager for the Kansas City Chiefs (2009–2012)
 * Joel Collier, assistant general manager for the Kansas City Chiefs (2009–2013), director of pro personnel for the Atlanta Falcons (2016–present)
 * Mike Tannenbaum, general manager for the New York Jets (2006–2012)
 * Brian Daboll, offensive coordinator for the Cleveland Browns (2009–2011), offensive coordinator for the Miami Dolphins (2011), offensive coordinator for the Kansas City Chiefs (2012), offensive coordinator for the Buffalo Bills (2018)
 * Rob Ryan, assistant head coach for the Buffalo Bills (2016), defensive coordinator for the New Orleans Saints (2013–2015), defensive coordinator for the Dallas Cowboys (2011–2012), defensive coordinator for the Cleveland Browns (2009–2010), defensive coordinator for the Oakland Raiders (2004–2008)
 * Brad Seely, special teams coordinator of the Houston Texans (2018–present), special teams coordinator of the Oakland Raiders (2015–2017), assistant head coach/special teams coordinator of the San Francisco 49ers (2011–2014), assistant head coach/special teams coordinator for the Cleveland Browns (2009–2011)
 * Charlie Weis, offensive coordinator for the Kansas City Chiefs (2010)
 * Josh McDaniels, offensive coordinator for the St. Louis Rams (2011)
 * Phil Savage, general manager Cleveland Browns (2005–2008), player personnel executive Philadelphia Eagles (2010–2012)
 * Jim Bates, defensive coordinator Tampa Bay Buccaneers (2009), Green Bay Packers (2005), Miami Dolphins (2000–2003), Atlanta Falcons (1994)
 * Chuck Bresnahan, defensive coordinator Oakland Raiders (2011)
 * Dean Pees, defensive coordinator Baltimore Ravens (2012–2017) and Tennessee Titans (2018–present)
 * Bob Quinn, general manager Detroit Lions (2016–present)
 * Jon Robinson, general manager Tennessee Titans (2016–present)
 * Jason Licht, general manager Tampa Bay Buccaneers (2014–present)
 * Ozzie Newsome, general manager Baltimore Ravens (2002–2018)

Belichick has been known to cultivate ties with the collegiate branches of his coaching tree—in the 2005 NFL Draft, the Patriots drafted two players from Fresno State, while in the 2006 NFL Draft, the Patriots drafted one Notre Dame player and then signed two more as free agents after the draft.

During the offseason, Belichick visits other football programs to learn from their experiences. For example, he has studied the Navy run offense, sought Bill Walsh (in past years) to understand more about the San Francisco 49ers as an organization and the West Coast offense as a system, and spent time with Jimmy Johnson to learn about drafting and contract negotiations.

Similarly, Belichick paid several visits to former University of Florida head coach Urban Meyer. Meyer considers himself a protégé of Belichick and has tried to emulate Belichick's success at New England. Former Rutgers University head coach Greg Schiano had been an annual visitor to New England Patriots' minicamps prior to becoming the head coach of the Tampa Bay Buccaneers. Schiano has consulted with Belichick on a variety of topics, most notably defense.

Personal life
Nick Saban and Belichick are good friends. When Belichick spoke about their relationship, he said: "Two successful Croats in the same division of NFL. You must admit, you don't see that every day." In May 2018, President Donald Trump appointed Belichick to be a member of his Council on Sports, Fitness & Nutrition.

Relationships
Belichick was married to Debby Clarke, but they divorced in the summer of 2006. They allegedly separated before the 2004 season, which was disclosed by the Patriots in July 2005. Belichick was also accused of maintaining a relationship with former Giants receptionist Sharon Shenocca, which helped precipitate her divorce.

Since 2007, Belichick has been in a relationship with Linda Holliday who also serves as Executive Director of Belichick's namesake foundation.

Children
He has three children with Debby Clarke Belichick: Amanda, Stephen, and Brian. Amanda is a 2007 graduate of Wesleyan University, where she, like her father, played lacrosse. After college, she worked at Connecticut preparatory school Choate Rosemary Hall as a lacrosse coach and in the admissions department. In 2009 she became an assistant coach for the University of Massachusetts Amherst women's lacrosse team, before joining the Ohio State Buckeyes in the same position the next year. After serving as interim head women's lacrosse coach at Wesleyan, she was named head women's lacrosse coach at Holy Cross College in Massachusetts in July 2015. Stephen played lacrosse and football at Rutgers University on scholarship. Stephen was hired as an assistant coach with the New England Patriots in May 2012;, he is the team's safeties coach. Brian attended Trinity College where he played lacrosse. In 2016 Brian was hired to the Patriots' front office as a scouting assistant.

Media and entertainment

 * In September 2011, a two-hour documentary following Belichick through the entire 2009 season was aired as the first two episodes of the NFL Network documentary series A Football Life. According to NFL Network, the premiere was the most-watched documentary in the history of the NFL Network, and the second-most watched broadcast in the Boston media market, beating all the broadcast networks, and finishing second only to a Boston Red Sox game.
 * Episode 96 of the ESPN show 30 for 30 is an episode titled The Two Bills and covers the history between Belichick and Bill Parcells.
 * Belichick had a cameo appearance in an episode of the Denis Leary drama Rescue Me as a mourner at a funeral, alongside former Boston Bruin Phil Esposito.
 * In the Madden NFL video game series, his name is not used because he is not a member of the NFL Coaches Association, which licenses the game. Belichick is the only NFL head coach who has chosen not to join the association.
 * The Belichick Plaza at Wesleyan University (formerly Warren Street lobby) was dedicated in recognition of the leadership and generosity of Bill Belichick
 * Belichick is well known as a fan of the rock band Bon Jovi, who visited Patriots training camp on August 14, 2006. Their 2002 song "Bounce" is dedicated to Belichick.
 * In a 2012 interview, Star Wars novelist Drew Karpyshyn named Belichick the NFL personality most likely to become a Sith. "Stealing signals in the Super Bowl? Total Sith move. The guy is always looking for every advantage; he's cunning and crafty and amoral. That may sound like an insult, but I'd love to have him coaching [my favorite team] the Chargers."
 * A Song of Ice and Fire author George R.R. Martin has mentioned Belichick and the Patriots in his interviews and in his work.
 * In the Family Guy episode "3 Acts of God" it is revealed that God won't let the New England Patriots win games because Belichick never smiles.
 * The 2008 South Park episode "Eek, a Penis!" deals with fallout from the 2007 National Football League videotaping controversy.
 * Belichick's "We're on to Cincinnati" press conference during the 2014 season is spoofed by comedian Frank Caliendo.
 * A glowering Belichick is featured in the 3rd episode of the 28th season of The Simpsons entitled "The Town" (2016)