one of six team captains selected prior to the start of the 2009 season. He started the Bills' season-opener against the New England Patriots and recorded six solo tackles before leaving the 25–24 Monday Night Football loss in the first quarter after breaking a bone in his left forearm. The injury was expected to sideline him for at least six weeks, but Posluszny was able to recover quickly and returned in four weeks while missing only four games (Weeks 2–5). He returned in Week 6 and recorded nine combined tackles, one pass deflection, and an interception during a 16–13 victory at the New York Jets. On November 15, 2009, Posluszny recorded a season-high 12 combined tackles (ten solo) in their 41–17 loss at the Tennessee Titans. Head coach Dick Jauron was fired two days later after the Bills started the season with a 3–6 record. Defensive coordinator Perry Fewell was elevated to interim head coach for the remainder of the season. The next week, Posluszny collected a season-high tying 12 combined tackles (11 solo) in the Bills' 18–15 loss at the Jacksonville Jaguars. In Week 13, he recorded five solo tackles and made his first career sack on quarterback Mark Sanchez in the Bills' 16–13 loss to the New York Jets. On December 20, 2009, Posluszny made nine combined tackles and intercepted Tom Brady for his third pick of the season as the Bills lost to the New England Patriots 17–10. He finished his third season with 111 combined tackles (88 solo), four pass deflections, three interceptions, and one sack in 12 games and 12 starts. The Bills finished the 2009 season fourth in the AFC East and did not qualify for the playoffs for the third consecutive season after finishing with a 6–10 record. 2010 On January 20, 2010, the Bills announced that they hired former Dallas Cowboys' head coach Chan Gailey as their new head coach. Defensive coordinator George Edwards decided not to continue to use a base 4-3 defense and installed a 3-4 defense that relied heavily on the linebacking core and used two inside linebackers instead of a sole middle linebacker. Throughout training camp, Posluszny competed to be a starting inside linebacker against Kawika Mitchell and Andra Davis. Head coach Chan Gailey named Posluszny and Andra Davis the starting inside linebackers, along with outside linebackers Chris Kelsay and Aaron Maybin. He started the Bills' season-opener against