#2 Mauricio Pochettino
League minutes played by U-23 players: 26.7%
Argentine manager Mauricio Pochettino has been in management less than a decade but he is one of three managers who has seen at least a quarter of the game time in the league shared by U-23 players.
Starting his career at Espanyol in La Liga, he earned a move to the Premier League when Southampton came calling. However, he lasted only a year as Tottenham Hotspur were impressed with his credentials - especially when compared to the sacked Tim Sherwood.
At Southampton, he trusted youngsters such as left-back Luke Shaw (who earned a move to Manchester United), Calum Chambers (who was signed by Arsenal), and James Ward-Prowse.
With Spurs, he put his faith in Harry Kane, Christian Eriksen, Eric Dier, Ben Davies, and Dele Alli a season later. Harry Winks is also proving his worth as a midfielder and he is only 21.
Spurs never had the finances to compete but Pochettino built a squad capable of challenging for the title. The fact that most of them have gone on to become England internationals also prove how successful he has been with young players.