The Blues were beaten 5-3 at Yankee Stadium in New York, two days after losing 4-3 in St Louis.
Torres said: "He came in a difficult situation, personally, for him with the reaction of the fans and the team were not doing well at the time.
"It takes a bit of time to do better but after that, at the end of the season, the team was much better than at the beginning. He has helped the team, the team has been good. The players are better.
"I think he came to do a job and he did. He must be happy because he won a trophy with Chelsea."