Tottenham’s squad does not have a single outfield player over the age of 30. Not one. That is remarkable enough in itself, but you do not need Wikipedia to tell you that Tottenham are a young team. You can feel it just by watching them: the crackling energy, the absence of complex or ego, the indomitable sense of fun. These are the qualities that have made them one of the most exciting clubs in the game right now. The big question is what happens next.