'It's tough to see the Bills keeping more than four running backs on the 53-man roster, despite how much they say they want to run the football. McCoy is going to take the bulk of the carries, and there won't be much need for a fifth running back. It's early to say Seantrel Henderson is on the outs with the new coaching staff, but he's certainly not off to a good start during minicamp. As for the nickel cornerback job, Nickell Robey pretty much has that locked down. The coaches like Darby as an outside cornerback.'