"News of the reshuffling and the additions on the Buffalo Bills coaching staff were overshadowed Monday by the announcement of a defensive adjustment that will include switching to a 4-3 formation from a base 3-4 which was used under coach Chan Gailey the last two seasons.

The move isn't surprising considering the Bills used a four-man front for most of last season due to personnel and injuries. The shift began during the team's Week Eight victory over the Washington Redskins, the first game rookie Marcell Dareus moved from 3-4 defensive end to 4-3 defensive tackle.

Dareus and the Bills responded with a season-best 10 sacks, the second most in franchise history, in a 23-0 shutout win."