C Webb should have to give a mea culpa and an apology to the school and the fans before Michigan even thinks of letting him come back. If he does admit responsibility and apologize, it will prove that Webber has developed the integrity to be worthy of the maize and blue again.
It has been twenty years, which means that Webber could admit to anything short of murder and the statute of limitations would apply. All he has to do is admit that what he did is wrong and apologize for it. Otherwise, why should a school like Michigan celebrate Chris Webber? He cost the team five years of victories by making it cool to take Ed Martin's money, and another ten years to dig out of the hole.
And still, after all that, almost everyone at Michigan would welcome him back if he simply apologized for what he did. Webber's ego is the only thing that is keeping him from being welcomed back.
Sometimes, you have to give a little to get a little.