yer i like this.
Player 1 - Stamina 5 GS - 7 ... = 12. Playing time 37 mins.
Player 2 Stamina 5 GS - 9 = 14 - Playing time 40 minutes.
Sometihng like that would be ok. This would help with replicating injury layoffs. ie: The situation whereby a player is injured, his GS is ruined, so when you bring him back after injury, he doesnt play 40-dodgy minutes, he only plays 30 dodgy minutes, and the backup plays more.
I like it.