I'm a little worried about Tyler, too. Not because I don't think he has ability, but because he just needs to settle down. He looked totally stressed / overwhelmed yesterday, just like in the Georgia Tech game. If ever there was a guy who needed to get a dunk just to get rolling and settle down, it's Roberson.
I'm also worried because he was clearly JB's whipping boy yesterday, and his body language suggested he didn't respond to it well [how's that for some armchair psychology?]. He had some really bad defensive lapses yesterday [he wasn't the only one], but JB spent the entire minute of several timeouts in his face, chewing him out exclusively. Some players can take that and use it as motivation without losing confidence, others cannot. It is too early to tell with Roberson which category he fits into.
Playing in an exhibition against an inferior opponent where the team can have a LOT of success is going to be like releasing steam out of the safety valve for players like Roberson, BJ, and Obokoh. Hope all there get extended run next Monday.