One way to shut up those types is to have accepted Ohio State's offer and played them. Demand serious $$$ for showing up. Then after the game call it a season, send the players home for the holidays, and move on. As for the other team we passed on playing, I truly have no clue as to why we would have walked away from that, but as the saying goes, that train has left the station so send the players home and move on to next year. Sad, but it is what it is.
With our QB situation, we probably would've lost by 40+ pts, so his "easy win" angle would likely have been validated (at least in his mind). The best way to shut them up is to beat them or at least throw a fear-of-God scare into them. That happened in 2008 when we were up 14-12 going into the fourth quarter. Even though we lost, I heard genuine respect from O$U fans for a couple years, until they beat us 43-7.