About UI and B1G success in the tourney, there are several reasons they seem to underperform. First, the B1G is a brutal league top to bottom - just try to name a better one. One of the principal reasons is the quality of coaching in the B1G. As a result, to succeed in the B1G a team has to show up to play every night. The teams that are top 4 in the B1G have put it out on the floor for 20 nights plus by the time the NCAA rolls around. The players are physically and mentally tired by the tourney. We had to battle to get a part of the conference title this year and were beat up by the tourney.
Secondly, while our team was successful in the regular season this year, this success was based upon effort and coaching as much as talent. In the tourney, teams like Michigan, Memphis and North Carolina outperform their seed because they are loaded with talent that woefully underperformed during the regular season - they hadn't given the effort to succeed night in and night out. So, when the tourney comes around, they are fresher and not as banged up and play more up to their talent level. BU demands more out of his players during the season - every day guys. With the injuries, suspensions, Covid and other medical issues, this was a difficult year - to accomplish what they did under the circumstances took everything they had. These guys were spent by the end of the regular season. You overcome this by having the talent to succeed in the regular season without having to use all your physical reserves and your mental strength. Hopefully, we are moving that direction.
Third, it is in part a matter of odds, like poker. The more games you play as a favorite, the better odds you have in succeeding. But being favored is no guarantee. Throughout a tourney I would guess that the worse seed probably wins 30% of the games. If BU makes the tourney another 12 times, there is a pretty good chance we will make a Final Four or two and maybe get that elusive championship.