As I'm still new to the game (played 2021 since June), there might be a way of doing this that I'm not aware of so apologies if so.
The AI depth chart/matrix management doesn't seem to match the way it's typically done in real life in the sense that rarely do you see real life Head Coaches take all 5 starters off at the same time. In 2021 and in my quick first look at 2022, asking the AI t set the entire matrix often results in them having the starters minutes all aligned together, and likewise the bench players.
In real life you tend to see staggered subs so that there is almost always a starter or 2 on the floor at all times. In the case of Phoenix, it's unusual for Coach Monty to not have either Chris Paul or Devin Booker on the floor to run the offense. In game, they both, along with the other starters, get sat a the same time. (the run and gun Suns team I grew up watching, Mike D'Antoni always wanted one of Nash, Marion or Diaw on the floor - they wouldn't all come out together)
Is there a way to currently manage this without having to complete the matrix myself, or can the AI matrix decision making be tweaked to stagger subs/starter minutes?