A setup like this should work for you and the starters won't play a full game.
Let Coach Decide
Blank/Blank/Blank
Blank/Blank/Blank
Starting SF/Backup SF/Backup SF
Starting PF/Backup PF/Reserve PF
Starting C/Backup C/Reserve C
Dress 4-5 guards but don't place them anywhere in the depth chart.
Murray/Harris/MPJ/Grant/Jokic - 2020 NBA Champs