But that is the point and that is the point Silver recognizes. The straight to high school players by and large would have been high draft picks after spending a year in college, so it is just a farce. You still have the same number of busts from high draft picks with a year of experience as you do with 0 years of college. I think the amount of busts you get from 2, 3, or 4 year players is pretty much the same as well, obviously accounting for draft position (though there just aren't very many of those guys any more). The amount of straight from high school to the pros players that completely flamed out of the league (i.e. no 2nd contract) were very small and far more often you ended up with a 10 year player as opposed to an under 4 year player because as Silver says, those players are being scouted from the time they are 13 years old and play in camps all summer long. The NBA scouts are perfectly capable of recognizing talent from an 18 year old as they are from a 19 year old or a 20 year old. Talent some times flames out and I'm sure a player or two that would have been drafted after high school ends up not being drafted after college, but those are extremely rare.
I mean seriously look at the mock drafts a couple of years out and then look at the actual drafts. Yeah there is some movement here and there, but by and large, the mocks get most of the lottery picks right and they get most of the 1st rounders right. I mean people have been talking about Fultz and Ball for years, and there are Fultz and Ball sitting right at the top of the draft where they were before either played in college.
not to nit pick (well, okay yes to nit pick), but in the bolded above it is not exactly correct. even among the top four picks this year, their standing in the mock drafts has shifted.
Fultz' mock history: started at #4, now at #1.
http://www.draftexpress.com/profile/Markelle-Fultz-90302/mock-draft-history/
Ball's mock history: started at #14, now at #2.
http://www.draftexpress.com/profile/Lonzo-Ball-7229/mock-draft-history/
Fox's mock history: started at #14, now at #4.
http://www.draftexpress.com/profile/De-Aaron-Fox-72510/mock-draft-history/
Tatum's mock history: started at #1, now at #5.
http://www.draftexpress.com/profile/Jayson-Tatum-7249/mock-draft-history/
Jackson started at #3 and is there today.
your basic point is that most times most scouts get most of the talent more or less correctly pegged. on that i agree, but there is, to my mind, a sizeable amount of variation over time in rankings.
a year ago Tatum was in the top 5, he is in the top 5 today. Isaac was in the lottery he was in the lottery today. Markkanen moved from low 20's to top 10. Monk moved from mid 10's to back end of top 10. Ntilikina has been in the top 10 every time. Smith top 10 every time (or just about). Even Kennard who draftexpress currently has at 11, was 17 a year ago (he is a Soph). Mitchell has climbed from end of the 1st round to back of the lottery (again a Soph). Zach Collins they had in the 2018 mock as just out of the lottery (clearly didn't expect him to enter the 2017 draft, but clearly shows they recognized his skill), they have him at the back end of the lottery today. John Collins (another Soph) has moved up quite a bit and has been the only player not recognized by draftexpress as a 1st round pick. Anunoby (another Soph) moved up slightly. Justin Jackson, our first junior, was projected as a mid 1st rounder in the 2016 draft before he came back to school. He has moved up a bit. Of course a player like Jackson never would have entered the draft out of high school. Anigbogu was a late lottery pick in the 2018 mock a year ago. Since they projected him into 2017 he has been right around where he is.
I could keep going, but the point is made. Draft sites (who aren't even team scouts), can generally get it right so clearly the teams could. Sure a player might be a late bloomer or a player might get exposed with tougher competition, but those players are rare. And the reality is there aren't that many players for which this would even be an issue, as only a handful in any given year would declare. Even at the heyday i.e. 2005 (the last year), 9 straight from high school players were drafted and only 3 went in the 1st round (Martell Webster, Andrew Bynum, and Gerald Green). The 2nd rounders however have mostly had great success as they are CJ Miles, Ricky Sanchez, Monta Ellis, Lou Williams, Andray Blatche, and Amir Johnson. Sanchez is the only guy to never play in the league, other than him Bynum has the least experience and that is a result of injuries (he still played 418 regular season games and 74 playoff games).