'RB Karlos Williams: He showed up overweight in minicamp, maybe 20-25 pounds overweight. Even Ryan said the Bills would need to set a realistic weight-loss goal for Williams by Day 1 of training camp which probably means he'll be starting practice conditioning on the sideline. Can he return in time to keep his No. 2 job behind McCoy? Nothing is guaranteed. The team drafted Jonathan Williams, Mike Gillislee finished 2015 strong and don't count out James Wilder Jr., a tall, strong back who impressed coaches during the spring.'