Here is the Bills official depth chart:
Offense
QB: Drew Bledsoe, Shane Matthews, J.P. Losman*
HB: Travis Henry, Willis McGahee, Joe Burns, Shaud Williams
FB: Daimon Shelton, Joe Burns, Ryan Neufeld
WR: Eric Moulds, Josh Reed, Lee Evans, Bobby Shaw, Sam Aiken
TE: Mark Campbell, Ryan Neufeld, Tim Euhus
LT: Jonas Jennings, Dylan McFarland
LG: Lawrence Smith, Mike Pucillo
C: Trey Teague, Ross Tucker
RG: Chris Villarrial
RT: Mike Williams, Marcus Price
Defense
LE: Chris Kelsay, Ryan Denney
DT: Pat Williams, Sam Adams, Ron Edwards, Justin Bannan, Tim Anderson
RE: Aaron Schobel, Constantin Ritzmann
SLB: Jeff Posey, Josh Stamer
MLB: London Fletcher, Mario Haggan
WLB: Takeo Spikes, Angelo Crowell
CB: Troy Vincent, Nate Clements, Terrence McGee, Kevin Thomas, Jabari Greer
SS: Lawyer Milloy*, Coy Wire, Pierson Prioleau
FS: Izell Reese, Rashad Baker, Pierson Prioleau
Special Teams
K: Rian Lindell
P: Brian Moorman
KO: Rian Lindell
LS: Jon Dorenbos
H: Brian Moorman
PR: Nate Clements, Terrence McGee
KR: Josh Reed
*Injured