Fred Jackson (concussion) is practicing in full this week. However, coach Chan Gailey has already announced that C.J. Spiller will start and "get the majority of the snaps." It's a tough break for Jackson - who is still running extremely well for a 31-year-old - but a move the Bills had to make. With Jackson likely to be the goal-line back, he still profiles as an RB3/flex play for the time being.