Somethings not right with Davis last year he did not produce. One of those "combine" guys.
He tore his ACL the year before this last season and played on an extremely unmotivated team last year after the whole Petrino incident. He was probably going to be a first round draft pick and #1 RB before the injury, it has dropped some because of the injury, but I would see his combine performance as more of him getting fully healthy and pending further injury,
I think he will be the best back in this draft.