With the Buffalo Bills transitioning back to the 4-3 defense under the newly-instated defensive coordinator Dave Wannstedt, there is surely going to be an overhaul of not only the front seven, but throughout the offense as well.
For once, offensive linemen are no longer in dire need, as it has been reported that the Bills are close to retaining guards Kraig Urbik and Chad Rinehart. The group performed solidly, creating holes for Fred Jackson and C.J. Spiller, who combined to average over five yards-per-carry on the season.
However, wide receiver remains an issue, as the Bills need to bring in a big-time threat alongside Stevie Johnson (assuming he re-signs).
Free Agent Target No. 1- WR Vincent Jackson, San Diego Chargers
The Bills' General Manager, Buddy Nix, was the one who selected wide receiver Vincent Jackson and may want to bring him to an up-and-coming offense lacking the one position where Jackson excels.
Last season, the 6'5" 230-pound wide out caught 60 passes for 1,106 yards and nine scores. In his seven-year career, he has reeled in 272 catches for 4,754 yards, while finding the endzone 37 times.
Bringing in a player of Jackson's caliber would place defenses in a predicament of whether to double Johnson or Jackson, leaving a lot of space over the middle for players like David Nelson and Donald Jones to make plays.
Free Agent Target No. 2- DE/OLB Mario Williams
A former No. 1 draft pick by the Houston Texans, it seems Mario Williams is ready to test the free agent market. With the Bills' transition back to the 4-3, a scheme in which Williams excelled. Last year with the Houston Texans, he managed five sacks in five games in defensive coordinator Wade Phillips' base 3-4 defense.
For his career, the 6'6" 283-pounder out of North Carolina State has racked up 241 tackles, 53 sacks, and forced 11 fumbles. It would take a lot of money to bring in Williams, but imagining him alongside Kyle Williams and Marcell Dareus is just too much to overlook.