The former Chelsea No2 admits he is disappointed to see his â€śgood friendâ€ť Roberto Di Matteo lose his job.
But Clarke, whose West Brom side beat the Blues last week, insists Russian owner Abramovich only does what is best for the club.
The Baggies boss said: â€śI am surprised and disappointed for Robbie who is a good friend and you donâ€™t like to see your good friends lose their jobs.
â€śIt is the way the owner runs the club. I donâ€™t think anyone should be over-surprised at it.
â€śThey look at results, the owner makes decisions and they act on what they feel is the right thing to do for Chelsea.
â€śIâ€™ve always said the owners of any club can run their business the way they want to run it.
â€śThatâ€™s how Mr Abramovich chooses to run Chelsea and itâ€™s been successful.
â€śIt is not for me to criticise or to say it is the right or the wrong way.â€ť
But Clarke added: â€śRoberto has got his place in history at Chelsea, the first coach to win the Champions League.
â€śIt is a massive achievement and he can be really proud of that.â€ť