I was literally coming here this morning to post I am surprised he's still on the board. He's not going to be a HOF RB but at this point in the draft I think he'd be a steal. He might be 3rd string as a rookie behind Drake and Edmonds, but if we had injuries like last year I would feel ok with Kelly having to play as a rookie. He'd have some issues in pass pro as all rookies do, and he didn't catch the ball much at UCLA but it's not clear if that was him or just the offense, the QB is a converted WR who has huge issues with touch passes so screens and wheel routes were just not very well done.
He clearly has holes but very physical and dependable runner. 4 years in college, 2 at Davis, he had a total of 6 fumbles, 3 lost, so not really a fumbler.
I'd love to see him as a Card. Say Drake were to get hurt, you can use Edmonds as the primary runner but he's not that great out of the backfield and if you need short yardage, he's not your guy. Kelley can be the short yardage guy.