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Part of Gareth Southgate's success could be his willingness to turn to football outsiders to help prepare his England team. One of these advisers, former Olympian Matthew Syed, argues there's a lot the rest of the world can learn about this approach.
If there is one universal truth about human psychology, it is that we love being surrounded by people who think just like us. The Ancient Greeks called it "homophily" which means "love of the same". It was Plato who warned "birds of a feather flock together".
In some ways, this is the story of the England football set-up for the last three decades, the squad run by a true "footballing man" advised by other "footballing men". The idea is that if you get knowledgeable football chaps in a room, you will maximise the amount of knowledge - and thereby find a way to win matches.