The billionaire has eaten up managers since taking over Stamford Bridge but it has brought more success than Arsene Wenger's long reign across London
It could be the case that the constant chaos Roman Abramovich has wrought over his managers has been the catalyst for Chelsea’s long-term supremacy over Arsenal.
No Chelsea first-team coach has been permitted enough time – or influence – to shape the club his own way. Total control was not given to even Jose Mourinho and it is unlikely any manager at Stamford Bridge will get it.
Club director Marina Granovskaia and technical director Michael Emenalo makes the big decisions.