Bill Belichick has coached 498 games (playoffs included) across 29 seasons with the New England Patriots and the Cleveland Browns.
Games No. 499 and 500 could go a long way in determining how much longer he continues.
The Patriots are 1-3 and coming off a ugly 38-3 loss at Dallas. Quarterback Mac Jones continued to struggle in that one and was pulled in the third quarter. Breakout rookie cornerback Christian Gonzalez was lost for the year with injury. Linebacker Matthew Judon also went down for at least two months, as well.