Saw Jimmer in person last night, the dude is a baller, he can shoot with the best of them. I think the success of his NBA career is going to be determined by a few things, the team that drafts him, and his passing ability. While technically he has been playing point guard, he's really a scoring point guard now, which is fine, but I think he hasn't been known as a GREAT passer (that's not what he is being asked to do at BYU) but he will have to be a great passer to excel in the NBA. I don't want to compare him to Nash, but at his height, I think to have a career like Nash has had would be absolute best case scenario for him.
If he can get on a team like that likes to run, if he could do what Dragic has done by coming off the bench backing up Steve Nash, running, scoring, I think he could get some cred in the NBA and move into a starting spot later in his career.