Taylor McNamara, a four-star TE to Rivals, ESPN, and 247 (and a three-star to Scout) just sent out this tweet:
@taylormcnamara1 Taylor McNamaraConsidering canceling an official and taking one to #Michigan...
That would obviously be huge for Michigan, and would fill the void left by Pharaoh Brown's decommit/parting of ways. He's already taken visits to Colorado, Notre Dame, and Washington, and has scheduled visits to Oklahoma and Cal over the next month. This is one to keep a close eye on.
[EDIT: I should note that McNamara is currently a very soft commit to Arizona, but it really looks like he'll be heading elsewhere. I don't think the hiring of Rich Rodriguez will change that.]