I think some people have been overly critical of him before the proday - and I believe there are several questions about him that a pro day can`t answer.
The first is injuries. His style of play tends to get you injured, as you could see with RG3. NFL guys are bigger and faster, he will get some big hits and he doesn`t have the body to absorb too many of them.
The second is his patience in going through reads. In college he often improvised when his first option wasn`t open. In the NFL it is great if you have the ability to improvise, but you only should do it, when you need to. And again, this could lead to some big hits.
The third is the question of how he can do the "normal" things in games, so the 5-15 yards passes. He tends to go for the big play too often - and those risks can backfire. In the NFL, take what the defense gives you, and those are usually those underneath throws.
That being said I would be thrilled if we take him. He would add some major excitement to our team and he definetly has the IT-factor. He plays his best when the brightest lights are on, he can do that nobody else does and he has the arm to do all the plays. But I would also be scared as hell because of the questions I just wrote. Biggest boom or bust pick - but I like going for the boom.