Michael Ballack claims Roman Abramovich's managerial chopping and changing at Chelsea has caused disruption at Stamford Bridge and stopped the players from concentrating on winning trophies.
The outspoken German midfielder, 33, has seen four managers come and go during his three-and-a-half years at Chelsea including Jose Mourinho, Avram Grant, Luiz Felipe Scolari and Guus Hiddink, who joined the West Londoners as temporary boss last season.
Carlo Ancelotti is now in charge at Chelsea and Ballack has called on the club's Russian billionaire owner Abramovich not to make the Italian another managerial casualty.
Ballack insists Chelsea need stability now and believes Ancelotti is the man to help them start winning 'big prizes' once again.
The Blues are of top the Barclays Premier League, into the last 16 of the Champions League and are still in the FA Cup - a trophy they won under Hiddink last season.
And Ballack said: 'I'm part of a team that is ready to start winning the big prizes again and it feels like we now have a manager who will bring stability to the club.
'We have had too many coaches during my time at Chelsea and that is not a goodidea if you want success.
'Jose Mourinho, Avram Grant and Luiz Felipe Scolari all came and went before Guus Hiddink had some time with us last season, but it feels like Carlo is here to stay and that has to be good news.
'This team has connected with Ancelotti and all the players believe he is a man who can work for us, which is a tribute to him because he has come into a dressing room full of highly experienced players who all have their own opinions and beliefs.'
Italian job: Ballack says Carlo Ancelotti is the man to lead Chelsea to success
Ballack also defended goalkeeper Petr Cech who came under fire for not taking charge of his area during Chelsea's recent dip in form in December which saw them concede several goals from set-pieces.
'We need to work on areas of our team and set-plays are something we have to give a lot of attention to,' said Ballack.
'Defending free-kicks and corners is a team effort and not just down to the defenders and Petr Cech.
'The best teams win as a group and that is the idea Ancelotti promotes in this team.
'The fact that we are top of the Premier League and still talking about areas to improve means we are a team with amazing potential and this is why I'm convinced we can look forward to the second half of the season.'
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