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The Portuguese's second spell at Chelsea is underpinned by a four-year contract and he believes the stability he now sees at the club will result in a longer stay.

"I have the record - three and a half years. I have to try and beat the record!" said Mourinho ahead of Sunday's Premier League clash with Manchester United.

"The club is good - it is more mature and stable now. The club knows what it really wants. The basic thing is the club wants to win, but it also knows the direction it wants to go in.

"That's why I came back. Not just because I love Chelsea and want to be back, I came because I believe in the project.

"I'm here to do my best and to beat the record. I have a four-year contract, so hopefully I'll beat the record."

Mourinho shrugged off the perception that he excels at making an immediate impact, shaking up a club amid a wave of controversy before moving on.

The Chelsea manager insists he can change his managerial style to suit a long-term assignment.

"I study and reflect a lot about my style of leadership when I'm at a certain club," he said.

"If you want the best results immediately and for a couple of years, your leadership can be much more confrontational. It's a different way to educate your players.

"Having a relationship with players for a couple of years is different to educating players with the mentality that I will have them for six, seven or eight years.

"It's a different job for me at Chelsea this time. It's time to be different because of my own project of life.

"I have had my career project since the beginning. I wanted to work in Italy, Spain and England. I wanted to try to win the leagues in these big football countries.

"For us it's very important to be a family that lives together day by day. So I wanted to do it while having this family concept.

"I was so happy at Inter Milan, but the only reason I left was because I wanted to go to Spain. Otherwise I would have stayed at Inter.

"At this stage I don't have these ambitions. At this moment I know where I want to be, it's so simple."

Mourinho voiced his admiration for Manchester United's 18-year-old winger Adnan Januzaj - "he's a fantastic player, he's 25 not 18" - and admits it is a pressing concern for Chelsea's academy to produce a player for the first team.

"This is very important, it's something I want to happen," Mourinho said.

"John Terry was the last player to come through the academy into the first team and that was not with me, it was before me."

Mourinho also insists there is no plan to send Juan Mata out on loan during the January transfer window.