Even better question would be "Can Ian Clark be any worse than Trey Burke?"
The answer is yes. Trey, at his best, is actually pretty good at getting the team in the offense and providing some natural PG abilities that don't show up in the stat sheet. The problem is that his natural inclination as a scoring PG doesn't work in the NBA like it did in college. He has to stop trying to be the player he was at Michigan and reinvent his game. Going to be hard to do that on this team though now that Burks is out for the year, Hood is going to miss a lot of games, and Kanter is even going to miss some.
I do agree Clark is a much better defender. Actually thought during preseason that Clark was our best off-ball defender when it came to being able to avoid being screened. Not sure about him on-ball vs. NBA PG's though. I'm sure that he can't be any worse than Trey in that regard though.