The biggest question mark for me IRT N Harris is his top end speed. IIRC he ran something like a 4.65 40 yard dash which is a tick slower than what we're used to. Most 40 times before the combine aren't laser timed so he may be closer to 4.70. Now, that doesn't mean he's not going to be a great back because I think he is but that may be the one dimension he's missing. He's obviously great at receiving and running with power. He's going to be a lot of fun to watch over the next few years..