Giving a rest to some players from time to time might be very important in long run. Last year we couldn't even run at the end of the season, which resulted with 7 or 8 draws in a row.
Yes, last year the main problem were injuries. Due to these injuries some of our players were forced to play non-stop Wednesday-Sunday and it was no surprise that they had little energy come the end of the season.
You're right. It's only the beginning so the players still have all the energy needed to play twice a week. But if they don't spare any energy for the later part of the season, and if injuries hit us again, then we'll lose the scudetto.
Remember season 2005/06 when Capello kept playing with 13-14 players the entire season? In the last 2-3 months we almost lost everything. We couldn't run against Arsenal, we lost a 12pts lead against Milan and we'd have lost the scudetto if there were 2-3 more rounds.
Sure, we shouldn't change everything, but we should make sure that no player will be dead tired come the end of the season.
1-2 changes, especially since we're playing an outsider, before such an important match in Munich, won't hurt.