#4 Jurgen Klopp
League minutes played by U-23 players: 23.3%
When Jurgen Klopp manages a club, he tends to stay there long enough to instil his brand of football in the players at his disposal. Averaging seven seasons at Mainz and Borussia Dortmund in the German Bundesliga, he now has the task of ending Liverpool's trophy drought.
Klopp started his tenure at Dortmund with a cup win before eventually winning two consecutive Bundesliga titles. A number of players in the core of that squad were U-23.
Mario Gotze, Shinji Kagawa and Nuri Sahin were the creative forces behind Lucas Barrios and Robert Lewandowski while defenders Mats Hummels and Neven Subotic started together at the back.
Central midfielder Ilkay Gundogan also made his mark at the club while Marco Reus had a fantastic debut season as Dortmund finished runners-up in the 2013 Champions League final.
At Liverpool, Klopp was lucky to inherit Philippe Coutinho but he gave him the freedom to thrive. Alberto Moreno and Emre Can were given plenty of opportunities as was Divock Origi.
This season, Joe Gomez has been a regular while the signs point at a bright future for young Dominic Solanke who has come on as a substitute a few times.