Mourinho is our greatest ever manager for many reasons. Trophy's, talent, and the historical significance of his reign and the impact he made. Well, as far as 'success' goes... Ted Drake only managed 1 league title in 10 years. So technically Jose' is the greatest manager the club has had. Man-City have had better managers than Mancini, once upon a time they won the league. Ethiad have never made a profit, the deal is criminal, it's owned by the same family who own Man-City. They've quite literally made a deal with themselves.