March 15 -- Mario Williams signs with Buffalo
The All-Pro pass rusher sent shockwaves around the NFL on March 15 when he signed with Buffalo rather than return to the AFC South champ Texans. The Bills will reportedly make Williams, who missed all but five games in 2011 due to injury, the highest paid defensive player in the league. The former No. 1 pick will have a lot of work to do in Buffalo: The 6-10 Bills ranked 27th in the league in sacks in 2011.