I agree you would have to think NW has a shot at winning this game, +8 1/2 looks good, BOL had it open at +10
As a diehard Michigan fan I can tell you that Michigan is likely not going to have RB, DeVeon Smith, whom has been their most productive offensive weapon. This is such a difficult game to handicap BC I could easily see Michigan win 13-0 or 17-7 but could just as easily see Michigan struggle offensively, resulting in a easy NW cover.