Nobody but him, he's just jumping to conclusions. People are focusing on the "drunk all the beer in Manchester" bit in the video but nobody has mentioned the part at the end where he said they discussed how he wanted everybody ready for the match at Brighton. He also said at the end that players were injured, slight knocks to recover from, that sort of thing.
It's perfectly obvious, they had a night celebrating 3 days ago, he rested a few, gave some of the others a chance and had we gone 2 or 3 up, looking at the bench I'm sure he would have given some of the kids a chance too, as many teams do at the end of season in meaningless matches. If they had been that pissed the media would have been all over it like a rash. People putting 2+2 together and coming up with 7.