Best case scenario, Max subs in two attackers at the 65th minute every game, they'd get an average of 70 minutes each for every 3 games.
And that's best case... You know Max loves to sub in attackers after the 80th. Plus we have other bench players who'll need to play: Khedira, NZonzi (or whoever we get), Asamoah, 3 of our 5 CBs...