5 biggest losses in Bill Belichick’s coaching career feat. 38-3 loss vs Dallas Cowboys

2) 0-31 at Buffalo Bills, 2003-04 regular season

Asante Samuel tries to tackle Sammy Morris

After missing the playoffs in 2002, the New England Patriots went on a cutting spree, headlined by top safety Lawyer Milloy, who later joined the Buffalo Bills.

That caused massive doubts over Bill Belichick's ability to manage his roster, and they were initially seemingly proven right when the Patriots got shut out in Orchard Park.

Tom Brady had a miserable outing, throwing four interceptions and allowing two sacks, one of them from Milloy himself. It's still the legend's worst margin of defeat as a Patriot.