The entire assumption on your part is absurd. NBA players are largely recruited, not created.
If you are good enough to play in the NBA, the NBA will find you. Outside of Bobby Knight and Landon Turner, a players draft stock is determined by genetics. The NBA would rather select a poorly coached, raw, young athlete, than a polished well-coached senior with limited athleticism. This isn't football, player development is important in building a program, but it isn't as important in making it to the next level. The NBA is such a specific league in what they are looking for in body type and athletic ability.
The idea that Hoiberg has some special NBA key he can give to potential players is absurd, borderline insane.