A variable: The coaches will have to want to use a change-up QB. They might not.
Another: Gardner would have to be better than Robinson even though Robinson has a big jump on him in terms of experience.
Final assessment: Gardner plays if a.) the coaches want to use a change-up QB and b.) Gardner is better than Robinson and c.) he's enough better that burning his redshirt is merited, i.e., the difference between what he brings and what Robinson brings is a greater contribution to the team than an extra year of eligility would be...I understand your point about Rodriguez being willing to sacrifice the future for the sake of 2010, and we can agree to disagree, but I don't think Rodriguez is feeling the heat nearly as much as the media would make it out. Michigan is going to be patient and he knows it, IMO.