Are you guys for real? I mean you are giving an advice to D.V guy to train his PF's OD and JR? Thats hardly the best way for him to improve his young team. Truth is both OD and JR are nice for a PF but so are DR HN PS. In fact every skill is good for PF. But they are by no means critical and I'd say that you can easily get away with 4 OD 2 JR PF. Imho just train his main skills and give him an occasional JS or DR training. Forget OD and JR. They are more of a luxury rather then necessity.
The original poster should simply re-read this advice.
Aside from training JR from Atrocious... ask yourself what are the chances of this player being with you in 2-3 seasons? I imagine you may train then sell and re-invest in a better trainee? If so, and you feel that your next PF needs to be a bit more versatile, shop about for one with better starting stats that can be improved... truth is you could spend 1 season on OD and JR training for the wrong height player and get 3 pops in total.... during that time you could get his primary skills up by a minimum of 2 each (RB/ID/IS)... whats more important to you and the growth of your team only you know but I would bet the 2nd option by far.