I could see MSU having a "down" year. 2014 MSU was all about Cook distributing to Langford and Lippett... limit those two (as Ohio State did), and they had no answers. Now they're gone and probably back to leaning heavily on Dave and stout defense.
Speaking of which, their D wasn't great last year ... it's hard to gauge how they'll be year-to-year b/c Dantonio relies so heavily on developing diamonds in the rough... but if it doesn't take off, they could be in some trouble. We'll also have to see how much they miss Narduzzi.
If Hairball can conjure some kind of magic with that junk roster... he could make a game of it. He got by at Stanford developing lower rated players like Dantonio... can he do it in Ann Arbor? That remains to be seen. Harbaugh's staff looks like the biggest question mark to me... NFL castoffs, nepotism, jobs-for-players, and legacies across the entire staff. It doesn't look like a recipe for success.