In this case, you are letting your narrative ignore the facts. Going back to Lydon at center, there was nobody else! There weren't centers to play center, so no centers played.
Going back:
In 14-15 We had senior Christmas in beast mode.
In 15-16 we went to Lydon playing out of position... The only other options were a broken Coleman or a terrible Obokoh.
In 16-17, we had Coleman and we replaced Obokoh with a first year Chukwu, plus Lydon at center had just gotten us a Final Four. Why would we switch?
In 17-18, Chukwu played 27 and Sidibe 12, not many minutes at center for anybody else.
In 18-19, Chukwu, Sidibe and Dolezaj split time at center, but Sidibe and Chukwu, while bad, still played 30mpg.
In 19-20, we had Sidibe play 24mpg, without a backup at all. Dolezaj picked up the slack.
In 20-21, we watched Dolezaj suffer through 35mpg at center, and it was horrible... But let's not pretend this is JB's new thing. We didn't have anybody else. We were hoping Sidibe would recover and play 35, but when he went down again, Edwards and Anselem (partially due to Covid preventing summer practice with the team) weren't up to JB's standards. If we had one of them play to fill in for Sidibe, we would have needed to bench one of Guerrier, Dolezaj or Griffen... Which guy would you have chosen? (During the Sweet Sixteen run, Edwards finally pushed Griffen to the bench, but a season of practices is a lot of experience.)
This upcoming year, we have an obvious rotation of:
Edwards/Anselem/small ball forward in emergency
Swider/Williams/JBJ
BBoeheim/Girard/Torrence
This is what we will see for the vast majority of the minutes.
Only if Sidibe has a clear and dramatic improvement in his health will this lineup change, and then one of Edwards or Anselem get pushed to the deep reserves.
Otherwise, Ajok, Owens and anybody else on the bench get sporadic minutes in blowouts or emergencies.
The only exception to this is if we pick up a late transfer or freshman recruit for deep depth. Whoever it is is unlikely to upset the rotation, as much as we would like a top 50 PG recruit to flip at the last minute.