20. Julien Nagelsmann
It’s shocking that Julien Nagelsmann is still only 32 years old. He’s just taken over the reins at RB Leipzig after three seasons of success at Hoffenheim. He was only 28 when he made his managerial debut for the club and brought them as far as competing in the Champion’s League for the first time in their history.
Nagelsmann is the quintessential modern manager, favouring a progressive style of play where his teams recycle possession quickly. He typically uses a flexible 3-1-4-2 formation that can swiftly change when necessary. It’s a highly intelligent style of play where positioning is absolutely key. Inspired by Pep Guardiola, Nagelsmann has been able to it with less talented players.