I'd start with 1on1 for forwards, then some passing and finalize with inside training. Inside skills will train very very very fast. Definately a candidate for the U-21. Remember to play with potential calculators to find the skill set you want.
PF with atrocious Jump Shot? I think the atrocious jumpshot relegates him to a life as a center. OD on your center is never a bad thing though. Unfortunately I also think superstar potential is too low to be a big man candidate for the national team. He will still be a U-21 candidate though and will defeinitely be the cornerstone of your franchise if you keep him and train him up. Good luck!