Cech said that winning the title was never the aim this season, but feels that Mourinho has now got the team he needs in order to win trophies from next season onwards.
"We're not the favourites for the title," he told the Evening Standard. "If we don't win it, we will be disappointed but it was not the target. As the manager said, this is a process of him building the team he wants.
"We have made progress even if there are no trophies at the end to show for it. We have been looking for stability and in the last few seasons we have had a lot of changes of manager.
"It's really important to start with one manager and end it with the same one. Now next season we can make an even bigger step forward."
Chelsea are currently five points behind Liverpool, whom they play on Sunday.