If he is happy then I'm all for keeping him as the best #2 back in the league. Eh, even then if we can get good value for him why not. AD is and should get 90% of the load anyways, and as I've said, there's great value in the RB position in this year's draft.
Tashard Choice wouldn't be too shabby in a Vikings uniform, but they signed Maurice Hicks. Kinda at odds as to why though. The Draft has plenty of better caliber than Hicks.