This isn't my idea, we did this very successfully in Australia for a number of seasons eventually becomming Asian runners up (and would have been champions if not for a critical injury in the final). My first involvement with the Aussie U21 team was as a mentor.
You are assigned a number of players to be your mentees. What is needed is to contact each manager. Ask them what their training plans are. Hopefully some will respond. With good managers you can get a weekly training report. For the others we can then track their DMI to see if they are getting trained and I can call them up at the end of the season as well to have a look. For those that are not getting trained we need to "encourage" the managers to sell them. We can point out that they will make money from the sale, that their nation will benefit from having a better U21 team, that their draft pick can become a star and bring them some status and that in the long run they can even buy back their own draft pick and have them as a great player.
I have someone who is keen to take the 19 year olds: Mr. Alvarez (BBB) - Australian Boomers
(196241)I stole GM-Perpetes idea and advertised for NT assistant coaches on the Aussie forums and I have already got six managers who have said they can train a player or help in some way. Fantastic!