There was an interesting series of tweets posted today from Tyler Dunne of Bleacher Report (and formerly of The Buffalo News) regarding the breakdowns on defense from the Bills over the course of the season.
Dunne posted a series of tweets quoting an anonymous Bills defender. I’ll tackle them one at a time.
This #Bills player said that Rob Ryan -- not Rex -- was the problem. Rob was basically the team's DC in 2016. "He changed everything."
— Tyler Dunne (@TyDunne) January 6, 2017
This really provides the context for everything else that was said.