durant, howard, rose, westbrook, smith, duncan, wade, pierce, bynum they all suck
never said it, i just say that not 90% of the team get a future star with there first round pick. often they are bench players, often they are traded right after or short time before the draft(not to forget the one traded much earlier), often they continue there career in europe after 1-2 years of failing expectations.
It is not like that NBA team, get everyseason a future Superstar.
Also i doubt, you can really compare it since the market is much more limited over there and the contract have a other value/quality ratio especially for draft.
The player who are selled by the spanish 2,3,4 league teams en masse, get your training space since they simply fit better to your team or are better(but they also come from the same draft system) and there need for the market is very low since there many dudes that quality looking for a team. I think NBA teams get pretty complete players, who all get training(even if they play more then train)