Though the Bills signed DE Mark Anderson to a lucrative deal in free agency, it was veteran Chris Kelsay -- and not Anderson -- who lined up with the first team at RDE on Tuesday. Mario Williams was at LDE. "He's a good football player -- that’s the bottom line for Kelsay," coach Chan Gailey said. "There’s going to be a three -- or four-man -- rotation in that group hopefully ... in my mind they’re almost all starters.”