Conference Tournaments
No college conferences would mean no conference tourneys in Basketball, which would be a good thing. Those tournaments make the regular season insignificant. You wouldn't have any teams that were around or under.500 making the NCAA tournament, like the Lehigh team in 1985. They had an abysmal record(7-24 or something like that), but they won their conference tourney, and they won the right to play Georgetown and get killed. Although, speaking of 85, the Villanova thing may not have happened. They only got in because they beat Pitt in their conference tourney. Same thing for the 83 Wolfpack. If they don't win the ACC tourney that year, they don't go to the tournament, and the Phi Slama Jama Houston team probably would have won it all that year and would have went down as one of the best teams in College Basketball history with Akeem, Clyde, Larry "Mr. Mean" Micheaux, Benny Anders, and Alvin Franklin.
Also, speaking of College Basketball, here is another thing: UCLA may not have won as many championships in the 60's and 70's because they may have been playing against better teams. The tourney back then would only take the conference champ, and there were some good teams back then that didn't make the tourney because they lost in their conference tournament or didn't win their conference, like the 74 Maryland team or the 71 USC team or the 70 South Carolina team.