#3 Julian Nagelsmann

The young German tactician did a tremendous job at Hoffenheim last season - guiding the unfancied club to the top 4 in Bundesliga - and while he's not been able to reach those same heights this time around, his team are still 6th in the league, just five points off a top-4 position with 4 games left.
And he's done it by eschewing the traditional underdog approach of packing defence and relying on counters - his team plays a beautiful, expansive, style of football.
It's a style that will go down well with a fanbase that has been spoiled watching some of the best football England have ever seen (not always, and not recently, but at their peak Arsenal were something else) and the young man could provide just the boost of energy and verve this squad has looked in desperate need of for quite some time now.
Nagelsmann has a win record of 42.22% - not too shabby considering the resources he's had to do it with.