Bill Wippert/Associated Press
Head coach: Doug Marrone
Offensive coordinator: Nathaniel Hackett
Defensive coordinator: Jim Schwartz
Special teams coordinator: Danny Crossman
There wasn't much difference in Buffalo last season, despite a new coaching staff, in terms of record from 2012.
The Bills have gone 6-10 in each of the past three seasons, and Doug Marrone wasn't quite able to turn things around in his rookie season in the NFL.
The defense was a bright spot in Buffalo last season, however, particularly against the pass. The Bills were second in the league in sacks and fourth in passing defense. Unfortunately, the defensive coordinator responsible for leading that unit is gone.
Mike Pettine took the head-coaching gig in Cleveland, and the Bills replaced him with Jim Schwartz. It wasn't a big downgrade—if at all—so the unit should be fine.
Offensively, the Bills were a bit of a letdown in 2012 under Nathaniel Hackett, his first season as an offensive coordinator in the NFL. He didn't have a loaded roster on that side of the ball, but the Bills failed to utilize some of their best players well.
Buffalo finished in the bottom third of the league in scoring, though they were in the middle of the pack in total offense. Hackett will need to improve upon that this season.