This seems “right” to me - although I’ll echo abel here about not being engaged in secondary BB analysis. The game is fun for me to discover, I don’t really want to try and reverse engineer the system itself.
I want my starters to have about a 17 on OD, but if I were promoting I’d want at least one guy at 19 or 20 to anchor my OD. Not sure if that’s a great strategy, though (I haven’t had a guy like that on my squad…yet).