SAF always developed young players and turned them into superstars! Giggs, Scholes, Beckham, Nevilles, Butt, Rooney, Ronaldo, were very young when they arrived at the 1st team. He then mixed them with some experienced players like Cantona, Keane, RVP. That's one of the reason it was so easy for him to make transition to another generation of players. Even his last team was full of young players mixed with some experienced ones (Ferdinand, Vidic, Carrick, Evra, Giggs, Scholes).
SAF always privileged youth and attacking football.