First, if he plays 34-40 minutes a game he better be scoring 15+ a game. The way we run our offense it would probably be catastrophic if he couldn't.
Second, the only time I ever hear this excuse about how hard it is to come in and out of game is with BT. I mean, if you're playing 5 minutes a game and expected to score that's one thing (see Mookie, Dirty), if you're over 20+ a game it's not really an excuse/issue. At least not much of one.
Third, I get the confidence thing, but if you're issue with shooting/driving the ball successfully is that the other players on the team are better than you, than I think we're all a little crazy to expect him to be our rock-solid leader next year. Stranger things have happened though.
Fourth, kid played pretty well in the tourney so he has something to build on going into next year. He's a very good player, I've said it every year he's been here - he's your ideal 3rd guard. Steady, but unspectacular. Does nothing very well, but is adequate at everything.
Fifth, he could lead us in scoring, and we could still win it all. I can't disagree with that assessment. If he's our most explosive player though, we're not very explosive.

If we have Noel though we should be solid underneath.
Love the kid, just like I loved Joseph, and Jardine but they all had their limitations. I'm just tentative to go big on the kid - hope he proves me wrong.