Most on here have alluded to the fact that the majority of young-stars never see their name in the first 11. Therefore, selling them and illusion to the 'smaller' clubs that the top six youth teams are packed with talent means that once sold they have theoretically paid for their own development. Hence why many never get to play regularly at their loan clubs. The fact is they just are not good enough. Therefore, It makes for good business sense otherwise why have a youth team at all if they are not going to crack the first team? Gems like Foden seldom appear and when they do, they have a definable path to take (Lakey, Hinchcliffe, Brightwell, White, Redmond, Flitcroft, Barton, Richards and Sturridge my casing point).