yes its true, you don't really play out of position to train, but you learn something.
You gain experience, no skills.
In this game you could turn a Manute Bol type player into Steve Nash, after playing him as PG for like 10 seasons. I know for BB, realism is no requirement in this regard, but it should be. Fans would revolt, staff would be fired and the player would quit because of sheer frustration.
I think some individual XP gaining system would be cool, where players unlock skills after reaching certain XP milestones -
Random numbers: each minute played is 1 XP point. 18 year olds can trade 20 points for 1 skillup, the older the player the more skillpoints are necessary.
That way all players could gain some training, older players progress much slower and at a certain point they can't develop further. Every player could play the position suited best for his skillset/size.
Training in the real world possibly focuses on tactics, so maybe we could expand this area too.
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular