Bill Belichick has been an NFL coach for 29 years, and it's never gone worse for him than Sunday's game.
At least in terms of margin of defeat.
ESPN's Ed Werder noted that Sunday's 38-3 loss to the Dallas Cowboys marked the biggest blowout defeat of the New England Patriots coach's career. It came in just ahead of a 31-point loss to the Buffalo Bills in 2003 and a 29-point loss to the Bills in 2020.
Things were ugly on both sides of the ball for New England.
Mac Jones threw two interceptions, one of which was returned for a touchdown, and lost a fumble, which was also returned for a score.