His first priority will be to keep hold of his big name players – and then Mourinho says he wants to provide competition for his Premier League title-winning squad with three additions in the transfer window.
Manchester United, Manchester City and Arsenal are all expected to spend significant money this summer and Mourinho believes he the new faces to stay ahead.
“We have to improve. If we have the same team the other teams will be better than us,” Mourinho said.
“If I keep Eden Hazard, Nemanja Matic, Branislav Ivanovic, Diego Costa and Cesc Fabregas – for us that’s the first target.
“I think we need three (new) players. A striker because we lost our legend (Didier Drogba), a defender and a midfield player.
“It will give a little bit more competitiveness to the squad, bring some new blood in, put some players a little bit under pressure. They know they have someone waiting, I need that to support my way of working.
“Now they’re the champions I need that but basically the same squad, the same team, the same manager and stability in the club.”