But for every success story, there are equal numbers of failures. You've raised Arteta who has done well. But you've got Kompany who flopped at Anderlecht, did well at Burnley championship wise but then spent £154m and took them down without a fight. Klopps academy coach (similar to Enzo's role at Man City) when to Blackpool and hasn't done anything.
Both McKenna and Enzo did great last year, but neither have any prem experience. We've just seen a Pep disciple crash and burn. Maybe Enzo does great with the endless resources, or maybe he flops under the pressure. Seems odd that Chelsea would take a gamble on a manager fresh from the EFL rather than some of the more experienced names available on the continent.
FWIW I'd rather take Frank, has done brilliantly at Brentford