In my friendly against LA Killaz I have putted Blum and Alimonos as starters, bench players and reserves but they played only 35 minutes. What happened?
When you get to garbage time, as long as there are bench players not in the game, they will replace a starter, even if they're not on the depth chart at all. If you want two guys to play the full 48 minutes, you can dress a maximum of 8 players, and the three players who are not starters need to be backup and reserve for the other three positions, such as:
1-1-1
2-2-2
3-6-6
4-7-7
5-8-8