23. Marco Bielsa
The man, the myth, the legend. Marcelo Bielsa is one of the greatest coaches of this generation, with Pep Guardiola labelling him as an inspiration. Famously volatile, gloriously eccentric, but undeniably brilliant, Bielsa’s main success was back in Argentina with Newell’s Old Boys and Velez Sarsfield.
He’s managed his native Argentina as well as European clubs like Marseille, Athletic Bilbao and currently Leeds United where he’s absolutely adored. Tactically there is nobody out there more knowledgeable than Bielsa, who created the mythical 3-3-1-3 formation. He also watches video footage and replays to the point of obsession.