Simple,
regular season title = Automatic Bid
conference tournament = Automatic Bid
fill in from there.
This would greatly increase the interest and visibility in mid-major basketball, as leagues such as ours would be able (most years) to get that 2nd team into the dance, and would push out the 18-17 win (conference losing record) from the tournament.
Unfortunately the math for this doesn't work.
Someone posted that there are 34 conferences in men's B.B.
I believe pretty much every conference has a tournament.
If that's the case,you could theoretically have 34 different regular season and tournament champions.
Not likely,but possible.
If that did happen,or even came close,the NCAA tournament loses at large bids.
They'll never put themselves in a position where that was even a possibility.