Those things don't bother me too much, I still love Bo and his legacy at Michigan.
I don't think you can measure success solely on Nat'l Championships. His Rose Bowl record wasn't the greatest, however he was the recipient of what I can only describe as bad luck.
We can play 'What If's' all day, but:
- heart attack before first Rose Bowl. I assume that diminished his team's ability to prepare & win the game, lost by 7.
- had undefeated Michigan gone to the 1973 Rose Bowl instead of OSU, and beat USC (which I don't believe is a stretch and is a logical assumption as both UM & OSU were pretty evenly matched teams that year), Bo could have had his Nat'l Championship in '73.
- had the refs properly called Chas.White's phantom touchdown a fumble in the 1979 Rose Bowl, the game outcome would have likely been different, garnering Bo a Rose Bowl victory, lost by 7.