Mourinho not ready to stand still
Jose Mourinho has committed his long-term future to Chelsea, but is aware of the danger of standing still as they prepare to begin the defence of their Barclays Premier League title.
Chelsea have made two signings - goalkeeper Asmir Begovic and striker Radamel Falcao, who signed on loan from Monaco despite a poor spell at Manchester United - ahead of Saturday's season-opener with Swansea, while their title rivals have spent more freely.
But Mourinho, who signed a new four-year deal on Friday, is adamant that change for change's sake is unnecessary and improvement is possible without making numerous signings.
"If you stand still you get worse. It's right. It's dangerous," Mourinho said.
"But the same people can move forward. You don't need to buy 10 players to be a better team.
"You can be a better team with one or two new players. You can be a better team with the same people."
Providing Diego Costa is fit - and that is by no means certain - Mourinho could start the season with the same first-choice XI which he deployed last term in Chelsea's dominant title triumph.
He hopes the continuity will have benefits in both the performance on the field and in the players' mentality.
He added: "The biggest advantage is for them to think together and say together: 'My club and my manager trust me so much.
"'They believe in me. Now it's my time, now it's our time to give it back and to give my manager, to give my board, my club, a proper answer'.
"They deserve our confidence, but I think now is our time to deserve a compensation of that and for the players to give us everything they have and to keep the level of ambition and motivation."
Mourinho, unsurprisingly, is optimistic for the season ahead.
"Confident. Always confident," said the 52-year-old, who returned to Chelsea two years ago and is now tied to the club he said he has a "special feeling" for until June 2019.
While insisting he will not be distracted by the transfer market, Chelsea are still in need of reinforcement, particularly in defence, where Mourinho has just five first-team players.
Mourinho on Friday made a veiled criticism of Roberto Martinez for the Everton manager's outspoken rebuke of Chelsea for their pursuit of John Stones.
Martinez was unhappy with John Terry's comments in praise of Toffees defender Stones.
Chelsea have so far tried and failed to prise Stones from Everton.
"I'm not speaking about Everton or Stones. I'm just speaking in general," Chelsea boss Mourinho added.
"If I could, I would speak with you (the media) once in a month.
"And there are other people in football who, if they could, they would have a press conference every day. And I don't want to say anything else."
Mourinho is keen for defensive recruitment, but insists he has no need to purchase another striker despite the uncertainty over Costa's fitness due to his recurring hamstring problems.
"Three is the perfect number and we have three," said Mourinho, who is prepared to field Loic Remy or Radamel Falcao against the Swans.
Put to him he has only two-and-a-half strikers due to the uncertainty surrounding Costa, Mourinho said: "The half when he plays is one and a half, so (that) compensates, because he's a fantastic player.
"I cannot say I don't need him. He's such an important player for us.
"Not just for the goals he scores, but also for the football he produces and also for the mentality he helps to create in the team."
Mourinho expected Costa to train with the team on Friday evening.
"His reaction after that and his decision to be confident to play is another story," the Blues boss added.