We have to be careful here. If we bring someone old in, like Sheed, you have to ask yourself; Will this guy be able to coach players like Asik, if he can't perform on that high level anymore?
I think people learn from diverse minds, and there is not one set type of personality that makes a good teacher, but if the Bulls interview and try-out Wallace, they need to look past filling the position temporarily, and look to utilize a players knowledge. Thibs knows Sheed's personality well, so if the Bulls don't like him, I wouldn't question the decision.