After the first Bills matchup, not only were the Patriots rolling at 9-4 and No. 1 seed in the AFC, but Judon was dominating and making the case to be the NFL’s Defensive Player of Year. But since that time, Judon has done a vanishing act — and arguably been a liability at times — and the Patriots’ defense is more of a question mark than ever as the team dropped 3 of 4 to finish the regular season.