Whether Didier Drogba will be at Stamford Bridge to meet the challenge next season remains unclear.
The veteran striker’s contract ends this summer, and Mourinho says that the decision on Drogba’s future is likely to be made not by him, but owner Roman Abramovich.
"I didn’t speak with him (Abramovich)," Mourinho said. "I think it belongs to him: what he feels, what he thinks.
"This is a club thing. This is a Mr Abramovich thing. Mr Abramovich wants him to do what he wants in the club, but it’s something Mr Abramovich has to tell him.
"He has to decide. But, obviously, he belongs to the history of this club. These guys are special players."
Mourinho believes John Terry, Drogba, Petr Cech and John Obi Mikel will bridge a generational divide if, as expected, they win the title, a decade on from their first, in the Portuguese’s first season.
"It’s nice to belong to two different generations," Mourinho said.