i've waxed about City in this thread, so perhaps time to talk about the subs and United.
Gomez....has some learning to do. Is about all. He looks quite tidy with ball at feet but he was shoved around a bit. Palmer, again, has work to do - he seems so safe, i really want to see what he can do, at the moment he isn't shining. Alvarez seems to be doing too much running without thinking how to properly apply that energy. That being said, he probably should have scored and hopefully will all settle in for him after a season of learning.
United were garbage. I cant for the life of me work out why Casemiro didnt play, maybe they thought McTominay's aggression was going to be enough? it usually isn't, and it wasn't. They surrendered a big gap in the centre, allowed our centre halfs to move up and they never got to grips with Foden and Grealish. Martial should have started, he seems to do well in derbies, with Rashford benched. End of the day, they got blown away in the first 45.