His leaping ability is one of his strong suits so he didn't do that well at the combines but when you're 6'4" going up against a cb who maybe is 6' you already have a 4" edge.
The main knock on him is his route running and consistency but that's something that can be taught. Remember when Porter came out WVa he was very raw as well but very athletic. They seem to be a mirror image of each other.
Having two of the best wr's of all time to mentor under for a year or two make him a real attractive option to the Raiders IMO. I would be ecstatic if we selected him.