Do you think in terms of youth players breaking through and being prem league standard is down to 'producing' or its more important the actual finding. I mean if you look at chelsea now for example or man utds 'kids' was it something that they did in nurturing and developing those players or just a case of having the best scouting and the most attractive propositions for the best young talent. Id imagine it is the latter but I genuinely dont know how important the setup is for development.
Errr I think it's a mix of
Good scouting and identification (RBL)
Good catchment area (PSG)
Good 'use of the rules' shall we say (City, Us)
Good coaching throughout the age groups (Chelsea, City, RBL,)
Good pathways into first team football, here or elsewhere from as early as possible (Chelsea, RBL)
Probably lots more but for me the most important thing is coaching and pathways. The most talented player in the world for their age group will wilt if they aren't coached correctly, and if they don't get mens football (w good coaching at an appropriate level) as soon as possible.
Re Chelsea : they've not got many into the first team but they run it as a business, get them a pathway into first team togger on the continent or in the championship then sell. Arguably the best academy in the Premier league to be honest.