I'm not sure I get the whole 'JB hasn't come through as a favorite' angle? I mean, his job is to get good talent and put quality teams on the floor have a chance to make a good run in March. He does this basically year-in and year-out and it's been particularly good lately.
But March exits are most of the time a matter of a good team running into a bad matchup or having an off night at the wrong time. It happens b/c it's a small sample against (in most cases) another really good team. Unless we're going to point to Richmond and UVM as JB's lasting legacy, I'm just not sure many of our losses have been 'upsets' in the tourney. I mean, off teh top of my head I can think of losses to MSU and Kansas in the JHart era (both were better teams), Mizzou in the Autry era (very good team), Illinois (loaded team), Arkansas (a game we could have won against a really good team), Marquette (really solid program which was obviously exceedingly familiar with our system and personnel), UK in 96 (a freaking loaded group), OSU (good team and obviously Fab hurt us to some degree), and even Butler, which went to back-to-back title games and nearly hit a buzzer-beater to win one. I don't know -- I just don't see many bad losses.