That's how bad Lopez is. Just look how lackadaisical he looks out there. For the last 2-3 weeks he has shown no hustle, no desire, and no effort. Manny sees this too but he has no choice but to play Lopez because there are no other options currently.
and this is a huge factor, believe it or not.
these people know that the FO won't call up anyone to replace them, so it doesn't matter whether they perform or not. people like Lopez and especially Pena know that they've got supreme job security.