In th nba over the last 20 years about 27 percent of lottery players have made an all star team. Where 55 percent of NFL players taken in top 10 have made a pro bowl. Now obviously its not an apple to apples comparison but gives you an idea of the difference.
And nobody is saying you cant find talent in the later round, in fact i specifically said in my first post 'of course there are exceptions' so it wasn't just dismissed like you did. But the data is clear in a system designed to spread out talent, a draft, that the NBA does a poor job as a whole of identifying a top tier talent and developing it and its why teams get stuck in that 6-12 range of the draft for years. Where as in somewhere like teh NFL a good draft and the ability to add through FA (something the NBA lacks) can make a turnaround quicker. In my opinion its the biggest problem the NBA has, that teams that are bad remain bad for a lot of years because the league is so bad especially in picks 5-12 of creating stars to make a franchise better and you end up with a bunch of Ivys and Asurs that everybody here would trade for a half-way decent player.