The Blues impressed in 2011-12 as they won the FA Cup and Champions League while also finishing sixth in the Premier League, and their Czech keeper has said that how they shape their squad will be crucial in the new season.
Cech told The Independent: "It is important for a team to have new players, young players and experienced players.
"I hope we find the right balance to go through the season and have success."
The keeper added that despite the development of youngster Thibaut Courtois, currently on loan with Atletico Madrid from Stamford Bridge, he still believes that he can be the Blues' first choice for a long time to come.
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"When the moment comes it will come, but I believe I have a lot to offer and I will try and keep my place for another four years.
"When I joined I tried to gain my place in the starting XI, to play as much as possible and win trophies, but I was not thinking I could be at Chelsea for 12 years.
"The club is a big part of my life and I am very happy there."
Despite seeing seven managers in his eight years at Stamford Bridge, Cech refused to criticise owner Roman Abramovich for being trigger-happy, instead praising his clear ambition and desire to win silverware.
"Ideally a club keeps the manager for a long time but sometimes that is the way it is," the 30-year-old continued.
"If you have an owner who expects the team to win trophies every year, sometimes he will change the coach. Last year the change made a difference which ended up with two trophies."
Roberto Di Matteo was interim manager after the sacking of Andre Villas-Boas, and led the Blues to their unexpected glory, for which he was rewarded with a permanent contract. Cech was not surprised at the decision.
The Czech pointed out: "If you have the coach of the team who wins the Champions League and the FA Cup you expect that to happen.
"That is good as all the players know what to expect from the manager already. We don't start from zero."