I had caught up with Josh Sills following his visit to Michigan (and he stopped at EMU yesterday as well) to talk about his offer from the Wolverines. He was not given clarification on what position they are recruiting him for. My guess would be OG, but right tackle is not out of the question. What makes this interesting is I'm pretty sure he grew up a big Ohio State fan (his email address has a variation of "Buckeyes" in it), but with Michigan being his first BCS level offer we'll see how things progress from here. Article linked below.
Josh Sills article
Josh Sills article