1st season: 6 weeks of 1 on 1 for PG/SG, then OD until the end. Between two-games week, train 1 on 1.
2nd season: 4 weeks of 1 on 1 for PG/SG, 4 weeks of OD, 6 weeks of PA.
3rd season: 2 weeks of 1 on 1 for PG/SG, OD to Marvelous, PA to Tremendous. If there is any time left, train PA.
And you have yourself a U21 PG without obscene salary because of low RB, JS and JR.
If you want him to enter NT, I think you will have to raise his ID a bit among other things.
That's how we train PGs in Slovenia for our U21 and they turn out great.
Slovėnų PG treniravimo būdas, kas nori gali išbandyt, pažiūrėsit ar normaliai gaunas:)