New Chelsea manager Luiz Felipe Scolari has promised sweeping changes at Stamford Bridge now that he is in charge of the club.
Under Avram Grant, the Blues failed to win any silverware last term, finishing as runners-up in the Carling Cup, Premier League and Champions League.
But Scolari is determined to restore a winning habit at the club and could sell Nicolas Anelka, Frank Lampard, Didier Drogba, Florent Malouda and Shaun Wright-Phillips to make space for the likes of Ronaldinho and Deco.
"It will be a revolution especially in terms of mentality," the Brazilian told the News of the World.
"First there will need to be an overhaul, as happens in any company when they change boss.
"When that happens I don't know, because it depends on the human resources, on the whole team.
"I confess, for the first few games I will have difficulty in identifying all the players and getting their fusion right.
"Everyone has their personality, their way of working and their way of seeing players. I will begin by seeing players in training because you see different reactions there.
"My choices are purely tactical ones. I pick the players I think are the best. I only give explanations about players I pick, never about others.
"I won't give explanations about any player not selected. Whoever is not selected is not selected.
"Let them be unhappy with it. They know that's the way it is in football. I, as a coach, have to live with the responsibility of choosing.
"Nobody knows what goes on inside my head. That's why it's better not to respond to some criticism."