Replace conference tournaments and expand the NCAA Tournament to all 340 teams. It is one of my pet causes -- one I have laid out here before. Here's how it would work:
Step 1: At the end of the regular season, the top 32 teams earn byes into the Big Dance. The remaining 308 teams are seeded into a bracket.
Step 2: Within 4 rounds of games (the same 4 games most small-league champs play to earn their NCAA bid anyway during C-Week), you cut that group down to 32.
Step 3: Seed them with the Top 32 into the usual 64-team format. Play on as usual.
There is no Bubble; everyone is in. Where conference tournaments are already a de fe "everyone-in-the-pool" tournament, this formalizes it.
The incentive to do well in the regular season: To get into that Top 32 and get the bye week (but the 32 who survive the 308-team scrum have their own advantage -- momentum).
Expanding the NCAA Tournament by a handful of teams is pretty useless; it doesn't solve anything. Letting everyone in does.
Championship Week (at least the first half) is fun. The NCAA Tournament is fun. Let's take the best of both and make them even better.