First of all, good choice in picking the 19 year olds. It didn't matter since you couldn't get the 18 yr old anyway.
JR is no big deal. You may want to train a few pops early in his career but its not a key skill.
Both players have average OD which is really nice

Both players have a great JS. Another +
Handling/Driving is decent on both. These skills train fast. One on One Forward or Guard will come in handy for these guys.
Passing also trains decently fast. So that's not much of a concern.
You could consider selling the HOF and building around your MVP.
Myself, I would keep both players and train them. One will be a starter before the other, but both will be practically uncapped players for a majority of their careers. Congrats!