Jose Mourinho has accused Chelsea owner Roman Abramovich of making a string of errors since the pair parted company two-and-a-half years ago.
The Inter Milan boss says Abramovich has too often appointed his friends rather than the right men to take the Blues forward, admitting he is pained to see how Manchester United have toppled his former side.
Mourinho admits Stamford Bridge will always be his 'football home', but there will be no time for sentiment when Inter host Chelsea in the Champions League last 16 next week.
Denying he was sacked by Abramovich back in September 2007, Mourinho told Sport magazine: 'I think you forget that I left Chelsea and not the other way around.
'Ofcourse, we didn't agree on anything, but I still have respect for him(Abramovich). He is a clever businessman and has done really well.
'But I think he has made some grave mistakes in his time at Chelsea and especially after I left.
Jose's boys: Didier Drogba (left) scores as John Mikel Obi looks on - two players who were at Chelsea during the Mourinho era
'I think that he sometimes thinks too much with his heart and helps people in football that he likes instead of thinking about getting the best for the job.'
Abramovich turned to Avram Grant, who was seen as being close to the Russian billionaire, after Mourinho left the club.
The way they were: Mourinho and Abramovich share a lighter moment at Selhurst Park in 2004
Israeli Grant struggled to carry the gravitas that is needed at such an ambitious club, but he still led the side to second in the Barclays Premier League and runners-up in both the League Cup the Champions League before being axed at the end of the season.
The short and disappointing reign of Brazilian Luiz Felipe Scolari followed before Guus Hiddink, another of Abramovich's associates, was brought in to steady the faltering Blues last season.
Mourinho believes that Chelsea now have the right man in Carlo Ancelotti, the former AC Milan boss who spent time sparring with the self-styled 'Special One' in Italy.
'He is very experienced and knows his way around European football,' said Mourinho. 'He did well at Milan under difficult conditions and I think he is doing a good job at Chelsea.
Fall guy: Avram Grant was dismissed after failing to win the European Cup in 2008
'I don't think that Chelsea chose the right managers after I left and I think they have learned from their mistakes.
Right man: Carlo Ancelotti
'It hurts me to see that Manchester United have regained the throne in the Premier League because they chased Chelsea when I was there.
'Ancelotti has the right mentality for Chelsea and I'm quite sure that they will win the Premier League this season.
'But I don't think that many things have changed since I left the club. If you take Branislav Ivanovic and Nicolas Anelka away, you have almost the same squad I left.'
Mourinho insists he was unhappy to draw Chelsea in the Champions League, not because of his history but because it represented one of the toughest ties possible in the competition.
'Sentimental? No,' said the 47-year-old. 'Maybe I will think about Chelsea for one or two seconds when I return to Stamford Bridge, but it won't be anything I will spend a lot of time thinking about.
'Stamford Bridge will always have a special place in my heart. It will, in a lot of ways, be my home in football, no matter where I go in my career.
'The Chelsea fans are fantastic and I am happy they appreaciate what I did for them and for English football.'
Ready for action: Inter Milan forward Goran Pandev (right)
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