It is very rare that all gems make it, watching quite some academy football, if the likes of Amad, Laird and to a little less extent Hansen/Mejbri don't even get a sniff, that is really on the club.
Paulo Fronseca, but that side was nowhere near as impressive as the Ajax sides which saw Onana, Ziyech, Frenkie, de Ligt, Donny van de Beek wanted by the top clubs in football.
Ajax also has this whole "Total Football" - thing going on, which is what they played and hadnt since the past century. It is 100% more impressive when a club from a smaller league achieves it, similarly to the Monaco side in 17/18?