I don't see a reason to hold back on Ulis. Summer League really doesn't tell us much but you could see in college that Ulis could run an offense. My question was twofold, how would he do against the speed in the NBA and how will he hold up physically. Holding up physically is still a concern but he's facing NBA speed right now and doing quite well. This guy is a quality point guard and will be a starter, I feel pretty confident about that.
I have high hopes for Chriss but it's just that - hopes. He's exactly what I expected. Huge potential, huge risk. And I feel pretty good about Bender but it all falls apart if his shot doesn't develop as predicted. But Ulis? He's a pretty safe bet IMO.
I am not that worried about how he holds up physically--if you mean by that avoiding injuries. I am more concerned about big players than little ones on that score. More leverage and weight are more of a concern on knees ankes and feet. If you mean, will he get knocked around on the floor, well, that does not seem to be an issue either. He just becomes an absolute pest, flitting in and out of traffic. Years ago, we would have been concerned about him getting posted up, but no one, especially pg's even does that any more. Even if they did, zone defenses are legal now. A modified zone would solve that problem immediately.
If I had to bet, I would say he eventually will be a starter. His midrange game is decent, and his driving game is creative. I would think he needs to improve his three point shooting some, not alot. But once that happens, I really don't see any weakness in his game, and that is a rare, rare thing. Most point guards have significant weaknesses. Nash was a horrible defender, Rondo can't shoot, Bledsoe is a marginal distributor, Knight is a turnover machine, Goran was a marginal shooter and not a very good defender, etc.