I do agree with you on Flitcroft by the way. Pretty sure one of his first games was the cup tie at QPR when Ray Ranson got signed on an emergency loan, played centre half and was completely dominant.
I remember Sturridges performance in the youth cup final, scored a worldy and was head and shoulders above everyone else, but then got a long term injury. I thought he was the real deal, but never really kicked on.
It could be argued Trippier has had the the most successful career to come from the modern day academy, discounting Foden.