Buffalo Bills running back C. J. Spiller (21) runs a drill during NFL football rookie mini-camp in Orchard Park, N.Y., Friday, May 7, 2010. (AP Photo/David Duprey)

Buffalo Bills running back C. J. Spiller looks on during NFL football rookie mini-camp in Orchard Park, N.Y., Friday, May 7, 2010. (AP Photo/David Duprey)

Buffalo Bills coach Chan Gailey takes notes during NFL football rookie mini-camp in Orchard Park, N.Y., Friday, May 7, 2010. (AP Photo/David Duprey)

Buffalo Bills quarterback Brian Brohm (4) throws to running back C. J. Spiller (21) during NFL football rookie camp in Orchard Park, N.Y., Friday, May 7, 2010. (AP Photo/David Duprey)

Buffalo Bills quarterback Brian Brohm looks on during NFL football rookie mini-camp in Orchard Park, N.Y., Friday, May 7, 2010. (AP Photo/David Duprey)

In this photo taken on May 7, 2010, Buffalo Bills' Ed Wang (71) and Andy Levitre (67) listen to assistant offensive line coach Bobby Johnson during NFL football mini-camp in Orchard Park, N.Y. Wang is the first player with direct Chinese ancestry to be selected in the NFL draft, chosen by the Buffalo Bills out of Virginia Tech in the fifth round. (AP Photo/David Duprey)

In this photo taken on May 7, 2010, Buffalo Bills' Ed Wang runs a drill during NFL football mini-camp in Orchard Park, N.Y. Wang is the first player with direct Chinese ancestry to be selected in the NFL draft, chosen by the Buffalo Bills out of Virginia Tech in the fifth round. (AP Photo/David Duprey)

In this photo taken on May 7, 2010, Buffalo Bills' Ed Wang looks on during NFL football mini-camp in Orchard Park, N.Y. Wang is the first player with direct Chinese ancestry to be selected in the NFL draft, chosen by the Buffalo Bills out of Virginia Tech in the fifth round. (AP Photo/David Duprey)