The average time that the current crop of Major League Baseball coaches have been in charge of their respective teams is nearly four and a half years. In the Premier League the average length of time for managers is less than two, and that's with some generous calculations.
The life span of a top division manager is remarkably low in English football, and it's getting shorter. Seven of the 20 sides have sacked at least one manager this season while the bottom four all have. Brighton have also changed manager, though that was necessary after Graham Potter left to join Chelsea.
Some will say it's the nature of the beast, the financial gains of survival and success are just too much to risk on managers failing for even the shortest periods of time. When it comes to the top four there is no difference.
