Coming from Organized Basketball, I'm not sure why we're 'choosing' a select few and ignoring everyone else.
There has to be a way where everyone gets some level of base training Weekly, without just flooding Pops all over the place, with the opportunity to focus extra training on a select few.
What happens when we Train C Shot Blocking? We just sent everyone else home all week, no practice for them, and make sure you're at the game?
How often does on Train for Team things, Stamina/GS/FT? Everyone could use some of that, but we don't even want ANYONE to touch those, because it takes away from 'Building our Bear'.
I know it's beloved because we love this game... but it was ALWAYS a dumb system for Training. Then tying that into Minutes Played in Games compounds that... no one ever got good through practice and developed INTO a Starter? Nope, only Starters ever improve in BB.
If we sit back and look at it as a fan of Organized Basketball, none of it makes any sense. But we're Gamers, so we're here learning the system and then gaming it to our best advantage.