I could see OSU coming out flat or disinterested against a very pumped up Rutgers squad and the game being close for a half. The problem is OSU can "wake up", turn it on and hang 30 points on us in the second half and still win going away.
So the only way I see us winning is if after coming out flat, they THEN proceed to make multiple critical mistakes: several turnovers, a special teams gaffe or two, unsportsmanlike conduct penalty on a crucial play, a stalled drive and missed short field goal. This would delay the inevitable onslaught and push the game into the 4th quarter and then who knows...
Obviously the scenario above is an extreme longshot, but that's the only way I see it even entering the realm of possibility.