https://en.wikipedia.org/wiki/La_Masia#Alumni https://en.wikipedia.org/wiki/La_Masia#Alumni https://en.wikipedia.org/wiki/La_F%C3%A1brica#Notable_Alumni https:/

https://en.wikipedia.org/wiki/La_Masia#Alumni https://en.wikipedia.org/wiki/La_Masia#Alumni https://en.wikipedia.org/wiki/La_F%C3%A1brica#Notable_Alumni https://en.wikipedia.org/wiki/La_F%C3%A1brica#Notable_Alumni https://en.wikipedia.org/wiki/Ajax_Youth_Academy#Notable_former_players https://en.wikipedia.org/wiki/Ajax_Youth_Academy#Notable_for... Presumably the unrealistic part is the how well it is possible to predict who will excel to a world class level. You take base athleticism and technical ability and you can clearly produce national league quality players very predictably and consistently. One would assume it is more difficult to judge future world-class potential and even more so the likelihood that potential will be lived up to.