Agree with Devine. Not sure what his combine numbers (if invited were), but I remember him as an explosive player. He's not like Sproles in that he's got a very slight frame (Sproles is short by stocky), but definitely would add an element to our backfield that we currently lack.
What other UDFA RBs are availabe? Seems to me like we'd be best served to go after those as RB additions to our team and concentrate veteran FA dollars to our DT problem.