Mallett has a ton of potential and upside but his bust factor could be high too. BOB will have to decide if taking someone like clowney in the first and trading the 2nd for mallett would be better than bridgewater. I think that's what it would take to get him anyways. He's just as much of an unknown as the QBs in the draft.
just for reference- http://www.youtube.com/watch?v=OurYaWeYlQw
Hell of an arm, but probably needs a good OL to operate