Former high school draft entrants are the last men standing

Of the four NBA superstars leading their teams to the Conference Finals this year, three entered the draft straight from high school--Kobe Bryant, Dwight Howard, LeBron James. The other megastar, Denver's Carmelo Anthony, was one-and-done with a ring at Syracuse.

Not bad, but are they the exception to the rule? How well have high school entrants actually done in their pro careers? Stay tuned for more analysis.