Let teams play more games in the year.NO, NO, NO. Roy would have a fit, and where would your out-of-conference games come from? It would turn college basketball into a regional sport.
In theory I agree with your sentiment. It was better and more intense in the good ol' days when conferences were compact (and actually made sense) and you could play everyone twice. Unfortunately that is no longer the case, thanks to football (and pure greed) dominating conference expansion.
At the very least, play the teams in your own "division" twice each year.
We play 14 teams. 18 games. So that's 4 teams we play twice. Two the same, 2 that rotate.
But if we had divisions, we could play the other 6 teams in our division twice. Total of 20 games.
That's not as good as playing everybody twice, but it would be better. And only adds 2 games.
Aren't we going to more games in-conference in a couple of years? I'm vague on that. Something to do with the ACC Network?