I would be all for top quality HS players - (read: 5* and high 4*) going straight to the G league, bypassing the charade of attending UK for a year (or, more accurately 7 months).
It's better for these players, they can focus full time on their craft while getting paid to do so.
It's better for the NBA, top draft picks will be seasoned against top competition and mentally ready for the NBA.
It's better for the G league, increased notoriety = increased attendance and viewership.
It's better for college bball, more roster stability and players likely to stick around 2-4 years = higher quality bball.
If I were the NBA I'd align each G league team with a local community college and require players to attend classes tailored to their skillset / future:
- nutrition
- personal finance & investments
- social media and brand management
- contract law
- exercise physiology
- public speaking
- marketing
- etc...
These classes would be directly applicable to their career as a pro athlete and not the bogus electives and theoretical classes they're subject to at universities.
In the event they didn't make it more than a couple years, the coursework would provide them with a) potentially an AA and b) a foundation to either continue their education traditionally or work in the atheltics ecosystem.
A similarly structured Jr NFL would be a great way to get top quality players focused on their craft and the ancilary skills and knowledge needed to succeed without the handuffs of traditional university / NCAA experience.