When I play Strictly Follow depth chart if the game is an easy one & I am up a lot at the end of the 3rd quarter the coach will play with the backups in the 4th quarter & at the end of the game my starters have 26 min & the backup have 22 min.
but if the next match is a little more competitive then the coach will not use the backups for the whole 4th quarter .....
for this i like to schedule scrimamges against team, i could easily beat ;) So in this case i could use the blowout to get 12 minutes fpor my backups, or such distribution like you have on that game.
Also it is posssible to play alway with 8/9 players, and let your trainees play the full minutes.