FILE - This Aug. 13, 2010, file photo shows Buffalo Bills quarterback Trent Edwards walking off the field during the first half of an NFL preseason football game against the Washington Redskins,  in Landover, Md.  Coach Chan Gailey is looking for a spark after Edwards failed to generate much offense in two losses.  (AP Photo/Alex Brandon, File)

Photo by: Alex Brandon

FILE - This Aug. 13, 2010, file photo shows Buffalo Bills quarterback Trent Edwards walking off the field during the first half of an NFL preseason football game against the Washington Redskins, in Landover, Md. Coach Chan Gailey is looking for a spark after Edwards failed to generate much offense in two losses. (AP Photo/Alex Brandon, File)