Glad Kwame still has a good chunk of his money left as well, but NBA GM's/front offices make bad draft choices every year, regardless of how much college or overseas experience a player has, and will continue to make bad draft choices no matter what type of system they come up with.
This is spot on. Overall, the success of the kids that were drafted in the first round out of high school have had more success compared to kids who are drafted after they played in college. For every Kwame Brown, there is a Michael Olowokandi. Here is your list of guys drafted out of high school beginning with Garnett:
Kevin Garnett - 5th pick (great pick)
Kobe Bryant - 13th pick (great pick)
Jermaine O'Neal - 17th pick (great pick)
Tracy McGrady - 9th pick (great pick)
Al Harrington - 25th pick (great pick)
Jonathen Bender - 5th pick (bad pick)
Leon Smith - 29th pick (bad pick)
Darius Miles - 3rd pick (averaged 14ppg his final season before injury - 2000 was a terrible draft - decent pick)
DeShawn Stevenson - 23rd pick (very good pick)
Kwame Brown - 1st pick (bad pick)
Tyson Chandler - 2nd pick (good pick)
Eddie Curry - 4th pick (started off strong, but ended up being a bad pick)
Dasagnia Diop - 8th pick (bad pick)
A'mare Stoudamire - 9th pick (great pick)
Lebron James - 1st pick (great pick)
Travis Outlaw - 23rd pick (good pick)
Ndubi Ebi - 26th pick (bad pick)
Kendrick Perkins - 27th pick (good pick)
Dwight Howard - 1st pick (great pick)
Shaun Livingston - 4th pick (bad pick)
Robert Swift - 12th pick (bad pick)
Sebastian Telfair - 13th pick (decent pick)
Al Jefferson - 15th pick (great pick)
Josh Smith - 17th pick (great pick)
JR Smith - 18th pick (great pick)
Dorell Wright - 19th pick (good pick)
Martell Webster - 6th pick (bad pick)
Andrew Bynum - 10th pick (good pick)
Gerald Green - 18th pick (good pick)
So, 29 guys were picked, 11 of which made an All-Star game and/or All NBA. In my amateur opinion, 8 of the 29 were bad picks...you won't find that good of odds (72% chance of making a good or great pick) with any other class group.