Thomas is far from an "average" player. I'd dare say every team in the Big 12 would be thrilled to have him on their roster. Is he a big who can take the team on his shoulders and carry them to a win in every game? Maybe not. But you'd be hard pressed to name more than two or three post players in the conference who fit that description.
I agree with those who say TaShawn is underutilized, mainly because our guards do a poor job of getting him the ball. Some might say he doesn't work hard enough to seal off a defender, and to some extent they would be right. Spangler is guilty of that sometimes, too. But when bigs continue to get good position and the ball arrives late or doesn't arrive at all, because the guards are too busy passing it around in a semi-circle, trying to get a shot from three, it's easy to see why our bigs get tired of jockeying for position.
I'm happy with what TaShawn Thomas has brought to this team. He's averaging 11.6 ppg and 5,9 rpg, not to mention the fact that he leads the team in blocked shots with 24. That doesn't count the shots he changes. Would I like to see him do more? Who wouldn't. But as Bounce13 said earlier, I shudder to think what this team would be without him.