Michigan needed help because they botched their last 2 coaching hires. They shouldn't be in a situation, nor is it advantageous for them, to have a guy come in and need to learn the program, the offense, etc. for one year instead of having a capable starter on the roster. And that's all Rudock is, capable.
With very rare exceptions (Russell Wilson) there's not going to be a quarterback who is a difference maker, looking to transfer and not heading to the NFL. Michigan's situation gets murkier too because they have a new coach coming in, so everyone is starting from square one. But if Shane Morris was an average QB maybe Michigan beats Utah to open the season. I would never want my team to be in a position to need a grad transfer to fill the QB spot. I hope Ohio State never has to "benefit in this way".