In the years immediately after England won the World Cup the then manager Alf Ramsey could do no wrong in the eyes of his players but as the winning team was replaced by a new generation the manager’s word was no longer law. At the start of an England training session Alf brought the new younger members of the squad together and suggested they get a hair cut. They just sniggered.

Here was a manager so out of touch with the new generation that rather than accord him the respect due the countries most successful international manager ever they considered his ideas and methods so out of date as to be a joke. It might be an extreme example but all managers no matter how successful will one day be considered to be out of touch. And as chief executives get younger and changes happen quicker their time at the top gets even shorter.