"I've asked a few people what happened. The second half was not acceptable," sid the Villa boss after the drubbing at the City of Manchester Stadium.
"I knew the game would be tough here. We did nothing in the second half and we were punished.
"We can't afford to give people the start we did.
"I think my type of teams will take chances but we cannot play the way we did in the second half away from home.
"We were a different team in the second half to the first and did nothing.
"We cannot give teams a start as we did with the first couple of goals."