Fair warning: at first blush, this may sound absurd. My working theory is that Vlad did not make the travel squad for Notre Dame.
As I understand it, although Michigan (typically) boasts 85 scholarship athletes and a number of walk-ons, only a portion of the team attends away games (65, I believe). This does not afford Michigan the luxury of traveling with the entire 3-deep roster. As some have speculated in the comments on the front-page topic, it is possible that Vlad was third string even after the injury to Van Slyke (a seemingly absurd proposition given the state of our depth chart).
If so, it is plausible that Vlad was left off the travel squad. On the travel team, where certain positions by necessity must travel with only two players, free safety is a likely candidate to leave off a third-string player. In the unlikely event something dire happens to the first two free safeties, Michigan can move Kovacs or Robinson from Bandit and still field a functioning defense.
At some point this week, the players must find out who will be traveling to South Bend and who will be left behind. If in fact Vlad learned he would be remaining in Ann Arbor this weekend, it would go a long way toward explaining the timing of the transfer. When nothing at all makes sense, something that doesn't make sense must be the answer.
Or I could be way off base.
/dons flame-retardant jumpsuit.