Lol Mourinho and second seasons, I'm even tempted to put a bet in.
I think the younger players such as Martial/Rashford/Bailly and Pogba developing is something that also needs to be noted. As shown by Spurs, team cohesion and player development can go a long way, even if City spend £200M and reconstruct an entirely new XI in 2 months you will need to account for player development.