Bloody hell, you are like a cracked record, and wrong. Yes, teams are mixing football up but all footballers need to be able to pass, receive and maintain possession. Defenders will always have to maintain possession. Man City are the best team at the moment and possession is key for them. Arsenal mix it up but every player, including the keeper, needs to be comfortable in possession. You want our academy teams to not teach defenders how to maintain possession through passing and that is a sure fire way to deny them a career in football. I watched South Shields recently and their defdenders were comofrtable in possession and passing short. Its bizarre how wrong you are. As for producing good youngsters I would suggest that Rigg, Watson and Young is a pretty good haul but now we are in the Premier League the standards are increased.
Academies are judged on how may players they progress to the professional game rather than just who plays in the Prem or internationally. We seem to do pretty well.