He is struggling for sure. Iowa went on their 9-2 run with him out and Marble running the point. May and Cartwright are going to struggle against a team like Northwestern where you have to be decisive and under control to be effective. I think Iowa can get away with Marble, Gatens, White, McCabe and Basabe against NU...they are not an athletic team by any means.
Part of the problem is any time someone gets the ball, they give it right back to him. Feel free to pass the ball around. Maybe White could touch the ball every once in awhile.