AJ's defense isn't good enough at this point.
Neither is his jump shooting that good right now so it would change the whole offense by playing AJ rather than Dyess.

In principle I totally agree with you, but I just don't think AJ is ready. He already has more minutes this year than Maxey had is rookie year.

Maybe if AJ works hard enough and improves enough during garbage time he will be good enough to get into the regular rotation before the year is over.