Bill Belichick coached in the NFL from 1977 to 2023, spanning 46 seasons with 5 organizations. He served as head coach of the New England Patriots and Cleveland Browns. His roles included Assistant Head Coach, Defensive Backs, Defensive Coordinator, and Linebackers. He worked under Bill Parcells, Bill Parcells, and Bill Parcells. 11 of his former assistants went on to become NFL head coaches.

Coaching Tree

Head Coach Offense Defense Special Teams General

Career Timeline

Career History

Year	Team	Role(s)
2023	New England Patriots	Head Coach HC
2022	New England Patriots	Head Coach HC
2021	New England Patriots	Head Coach HC
2020	New England Patriots	Head Coach HC
2019	New England Patriots	Head Coach HC
2018	New England Patriots	Head Coach HC
2017	New England Patriots	Head Coach HC
2016	New England Patriots	Head Coach HC
2015	New England Patriots	Head Coach HC
2014	New England Patriots	Head Coach HC
2013	New England Patriots	Head Coach HC
2012	New England Patriots	Head Coach HC
2011	New England Patriots	Head Coach HC
2010	New England Patriots	Head Coach HC
2009	New England Patriots	Head Coach HC
2008	New England Patriots	Head Coach HC
2007	New England Patriots	Head Coach HC
2006	New England Patriots	Head Coach HC
2005	New England Patriots	Head Coach HC
2004	New England Patriots	Head Coach HC
2003	New England Patriots	Head Coach HC
2002	New England Patriots	Head Coach HC
2001	New England Patriots	Head Coach HC
2000	New England Patriots	Head Coach HC
1999	New York Jets	Assistant Head Coach, Defensive Backs under Bill Parcells
1998	New York Jets	Assistant Head Coach, Defensive Backs under Bill Parcells
1997	New York Jets	Assistant Head Coach, Defensive Backs under Bill Parcells
1996	New England Patriots	Assistant Head Coach, Defensive Backs under Bill Parcells
1995	Cleveland Browns	Head Coach HC
1994	Cleveland Browns	Head Coach HC
1993	Cleveland Browns	Head Coach HC
1992	Cleveland Browns	Head Coach HC
1991	Cleveland Browns	Head Coach HC
1990	New York Giants	Defensive Coordinator, Defensive Backs under Bill Parcells
1989	New York Giants	Defensive Coordinator, Defensive Backs under Bill Parcells
1988	New York Giants	Defensive Coordinator under Bill Parcells
1987	New York Giants	Defensive Coordinator under Bill Parcells
1986	New York Giants	Defensive Coordinator under Bill Parcells
1985	New York Giants	Defensive Coordinator under Bill Parcells
1984	New York Giants	Linebackers under Bill Parcells
1983	New York Giants	Linebackers under Bill Parcells
1982	New York Giants	Linebackers, Special Teams Assistant under Ray Perkins
1981	New York Giants	Linebackers, Special Teams Assistant under Ray Perkins
1980	New York Giants	Special Teams Assistant under Ray Perkins
1979	New York Giants	Special Teams Assistant under Ray Perkins
1977	Detroit Lions	Offensive Assistant, Special Teams Assistant under Tommy Hudspeth

Worked Under (5)

Coach	Team	Years
Bill Parcells	New York Giants	8
Bill Parcells	New England Patriots	1
Bill Parcells	New York Jets	3
Ray Perkins	New York Giants	4
Tommy Hudspeth	Detroit Lions	1

Protégés (11)

Coach	First HC Job	Year
Al Groh	New York Jets	2000
Nick Saban	Miami Dolphins	2005
Romeo Crennel	Cleveland Bulldogs	2005
Eric Mangini	New York Jets	2006
Josh McDaniels	Denver Broncos	2009
Bill O'Brien	Houston Texans	2014
Matt Patricia	Detroit Lions	2018
Brian Flores	Miami Dolphins	2019
Joe Judge	New York Giants	2020
Brian Daboll	New York Giants	2022
Jerod Mayo	New England Patriots	2024