Greetings from germany!
I'm glad Marin got a chance to play in a real game finally. Not so glad about the first 45 minutes though, but in the second half he was pretty good, creating maybe the best chance of the game for Chelsea to score. (Comeon Moses.. just touch that round thing maybe 1 inch more and the ball is in... :( )
All in all I think what killed the game was the first half where the CB's seemed to sometimes ignore the R/LB and Luiz + Lampard weren't giving them enough options, resulting in fun long balls to the front. Or more often into the nightsky. When the ball came through okayish there was Torres in the front, where he did his usual 'magic' (other people might call it losing the ball).
Edit: 1st Post btw, so please don't kill me. :)