Uthoff is just an incredibly awkward player at this point. And he was bad matchup last night. If he is playing the "three," we almost have to play zone defense. Because neither White, Uthoff, McCabe, or Basabe can play man defense against three-guard looks (look at the teams who beat us--three guards).
That would be fine if Uthoff could exploit his defender down the court, either through post-ups, offensive rebounding, or shooting over his man or the zone. But he can't. So we might as well play Ogelsby and Jok more so we can at least have a couple guys in the game with better lateral quickness and perimeter shooting. And Uthoff is not good enough to take minutes away from White and Basabe at the 4. Hence, he doesn't play.
We need more guards/wings. And we need better guards/wings. In college basketball it is easier for a decent 6' 4" guard to exploit a player like Uthoff or White than it is vice-versa. That quicker player can play tight on ball defense because of superior quickness, and refs allow a lot of physical play in the paint to negate post-up advantages.