Never seen a loss that was so obviously the manager's fault. Hart is the only player who can honestly be given individual blame (and even then, letting Ribery run riot around the box isn't doing the GK any favours). Everyone else's poor performances can be attributed to the system AFAIC. The strikers were crap because they had no service. The midfielders were crap because they were constantly outnumbered. And the defence were crap because Bayern had so much possession in dangerous places, that they were eventually forced into errors. Bayern didn't actually create anything amazing.
I hope Pellegrini holds his hands up for this one and then we can move on. He's obviously a talented coach, and I have no doubt he'll show it in time. But he definitely dropped the ball tonight.