What often takes rivalries from great to epic are the personalities that are a part of them. In college, that often has to do with the guys patrolling the sidelines as head coaches. When you talk Ohio State vs. Michigan on the gridiron, that of course means you have to think about Woody Hayes and Bo Schembechler.
OSU vs. Michigan has been one of the best rivalries in sports before those two glared at each other across the field, but the ten years they coached against each other made the game — well — “The Game.” During that “ten-year war,” Woody and Bo were fierce competitors on the field and had a palpable dislike for each other.