Mourinho returned to the club as manager in the summer after Benitez had a six-month spell in charge at Stamford Bridge, where he led the team to the Europa League trophy and third in the Premier League.
The Blues manager said: “I knew it would be tougher [this time]. Some managers choose easy jobs, some tough, I choose a hard one but I enjoy it.
“This is not a criticism but the last manager Benitez knew he would not be the manager for the next year and he was chasing results. He was not worried about the building of a team with a certain style.
“I didn’t have a real base to start. For many reasons we knew the situation needs time and patience.
“But it would be easy to say wait for five, six years, that’s not me or Chelsea or what we want for the players. We want to build and chase results. We’re not favourites but want to feel as favourites.”
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