4) Marcelo Bielsa (Leeds) – 3 Years And 245 Days
It was a massive coup when the Whites secured the services of the Argentinian legend in 2018, and he hasn’t disappointed, getting them promoted to the top flight during his second season at the helm.
After keeping Leeds up during their first Premier League campaign for sixteen years, the task for Bielsa now will be to consolidate and help the club become an established top division team once again.