In his first year without Tom in 2020, Belichick went 7-9. In the ensuing three years, his teams were just 22-29 (including a 4-13 record this season).
Belichick went 266-121 overall in his New England career ... and he leaves Foxborough just 14 wins away from tying Don Shula's all-time mark of 347 wins by a head coach.
No word yet where either side will go from here. Reportedly, assistant coach Jerod Mayo -- a former star with the Patriots -- is a leading candidate for the job ... though ex-New England linebacker and former Titans head coach Mike Vrabelwill no doubt get a long look for the gig as well.