I agree, it isn't rocket science.
Portal Center plays 28 minutes a game. Brown fills in for four 3 minute rest periods for portal center.
Freeman plays 28 minutes a game, Brown fills in for four 3 minute rest periods for Freeman.
Bell plays 28 minutes a game, Brown fills in for two 3 minute rests, and Copeland the other two.
Portal Center 28
Brown 30
Freeman 28
Bell 28
Copeland 6
The portal center is either a great player and one of Freeman or Brown are sent back to the bench (Brown was a starter due to injury this season, after all and Freeman is still a freshman) or the portal center gets starters minutes with Brown, Freeman and Bell as the players on the court to start the game.
Undetermined backup center and big forward players get spot minutes unless they have injuries again, or somebody has a huge breakthrough. It would be kind of awesome if Carey gets recruited over by a solid portal center, and Carey goes on to eat him alive in practice so he takes a lot of portal center's minutes. I guess that's why we watch sports. (and why everybody watches Rudy over and over!)