World Cup victor when he arrived at United from Bayern Munich, but Mourinho has moved them all on because their future was nowhere near as bright as their past.
The United manager talked about how he was pleased with the preparations in the build-up to Monday's game and how proud he was of the supporters at Old Trafford.
Despite the result, Mourinho said "by strategy we didn't lose, tactically we didn't lose, but we lost the game".
"People are now looking at him and people are talking about how much longer he has got at United, which personally I think is stupid".
With the fans chanting "Mourinho's red and white army" and applauding, the manager clapped them back for more than 30 seconds.
Moreover, whereas Mourinho used to staunchly defend his players, at United he has routinely criticised his squad in public.
Antonio Conte led Chelsea to the title in his first season in the Premier League, but began last campaign in a sullen mood, bemoaning a lack of backing in the transfer market, before embarking on a disappointing season which saw the club finishing fifth, crucially outside of the Champions League spots. "Keep trying. We lost last season here against Sevilla and were booed because we deserved it, because we were not good", he said.
Mourinho had made clear throughout the close-season that he wanted a new central defender and his team have shown in the past nine days exactly why. And, it appears as if Mourinho knows this team needs some better players, but who knows if that will even fix this. "I already knew then that they are great players, but since then they have made great progress and now are in the top 5 in the world", said Van Der Vaart.
"We worked very well during the week", he told reporters.
The team looked fine in the opening half and created chances, but Mourinho brought on central defensive midfielder Marouane Fellaini down 2-0 in the second half and started small midfielder Ander Herrera at center back. And you want to transform the story of your game.