Chelsea hero Ashley Cole says everyone knows the demands of owner Roman Abramovich at the club.
Cole saw his share of managerial sackings when with the Blues.
He told Sky Sports: "When you look at it, we won in the first year with a lot of managers and then in the second year there was a little dip and consequently, the manager ended up getting the sack, which is kind of sad really.
"I don't think players are involved in big decisions like that, it's always down to the owner, Roman, who for me, has been one of the greatest owners of a club in Premier League history. He has always backed the managers with money when they have wanted to buy players but that comes with expectations, you have to win.
"You're at Chelsea to win. I got that vibe when I first got to the club, Jose was there and he had done a great job two years before when he won the league and then six months to a year later, he got the sack. We took maybe one of the greatest managers ever and within two or three years of me being there, he was getting the sack.
"It's ruthless, but as an owner, you want to win. The owner didn't think he could get the results or play the way he wanted to play and that was it, he was gone. Chelsea always want to buy new players, they're always willing to invest but that comes with a consequence of if you don't win, you're out."