Colts beat writer Mike Wells was asked who would start at RB: "You can't count out Ahmad Bradshaw based off how he played in his brief time on the field before getting injured last season. ESPN NFL Insider Jim Trotter had an interesting nugget recently. He wrote on Twitter that Trent Richardson, according to coaches, is relying more on his instincts when running instead of thinking it through and he has a chance to be a 'three-down player.' I'd say at this point -- and mind you, so much can change over the next few months -- that you have to think Richardson and Bradshaw are the frontrunners."
Wells doesn't provide much clarity by naming two of the three RBs in contention (along with Vick Ballard) for the starting job, but it is interesting that Richardson may become a three-down player this season given the way he ran last season.