Buffalo is stupid. The guy had a .500 record back to back years on a team with not much talent. If Watkins stayed healthy this year they are likely a playoff contender right now. They were pretty close, despite Rex getting stuck with a team that didn't fit his defensive schemes. They have the personnel for 4-3 and no shutdown corner. Rex's D's rely on big NTs and a tough Dline, combined with exotic blitzes. If they have no elite corner, blitzing and Dline pressure won't matter much. Poor Rex got the raw deal again. Hopefully he'll be back next year as DC for somebody because he knows defense well.