I have seen lots and lots of broken players in the market, coming out from u21 farms at 22. They are easily recognizable because they go to the market in pairs or triplets. You should know that those are not the type of player a div.1 team wants or needs.
It's true I've seen them as well. They are not lost, but very hard to fix, and most managers (me included) don't want to invest in this chore. I have a friend that likes to fix this kind of players but only Romanian ones.
Anyway Otis is right as well, you don't have any idea of the skills our players have, and to be honest neither do I. So they might be on the right track. To be honest I'm just curious about you training plan, and to compare it to mine.
I made an NT player, but he had no chance of getting into U21 because of my training plan, so that makes me wander if it's possible to make a player that is good in U21 and can also get to NT.