C.J. Spiller and Fred Jackson have shared carries this season for the Buffalo Bills.

Chan Gailey admitted Monday "it felt awkward" to rotate running backs this season. 

"Last year, when C.J. got a chance to play and showed how explosive he was," Gailey said of when he changed his mind on having a feature back. "We came into the season, saying 'We've got two great backs. Let's use them both. Let's let them both get carries, that way we may not wear one down and we may keep them for the whole year,' which didn't work out. But that was the point.

"I didn't have discussions with the staff. We made the decision. It seemed like the best decision at the time, which I still believe it's the best decision that we could've made, considering our situation with two great players.

"I'd do it again if I had it to do over. ... It was the best decision, and you go with the best decision. There's a lot of things that have happened that I didn't do 10, 15 years ago the same."

Jackson's latest injury is considered minor.