Mourinho works well when he can use his favorite tactics and when he doesn't have to base his tactics on one person.
Porto - used his bus, no superstar
Chelsea I - used his bus, no superstar
Inter first- used his bus, tactics based on Ibra
Inter second season - used his bus, no need to appease to a superstar
Real Madrid - semi-bus, tactics based on Cristiano Ronaldo
Chelsea II - no bus, possession football, tactics based on Hazard.
Give Mourinho complete freedom to play the boring-est, most defensive football on Earth, without some big star with preferred tactics and he deliver results.