I don't know what's been going on in the last decade. A lot of things have do with it for example all the big high schools have been broken down into a bunch of smaller ones, a lot of the powerhouses like Rice closed down, back then NYC had the most popping HS basketball scene in the nation. Right now Wings and Eagle Academy in the Bronx, as well as Lincoln in Brooklyn trying to hold it down. The Dyckman and Rucker Park scene is still hot. A lot of the nikkas that was coming out didn't pass the torch well, a lot of them flopped in the NBA and got into other shyt.
Like a poster said we are a guard oriented city and it is a gift and a curse, another thing is the AAU we don't have those elite AAU teams like other cities, a lot of NBA talent isn't coming out the city (really outside of Chicago) but surrounding suburbs because of the prescense of the AAU and elite catholic/prep schools. Not to mention we need open facilities and gyms, shyt over here nikkas waste time playing 21 and little 5 on 5 games on concrete. That's why our suburbs and upstate is producing ballers. Danny Green, Tobias Harris, Ben Gordon, Kyrie Irving (parents is from the Bronx

), AJ Price, Michael Kidd-Gilchrist all from Long Island/NYC suburbs in Jersey/Westchester. Hibbert was born in Queens but he came outta upstate Buffalo, Jimmer Fredette from upstate too. Those suburban areas have massive schools with weight rooms and shyt and put a big emphasis on sports.
We produced these in the last decade
Lance Stephenson
Kemba Walker
Carmelo Anthony (lived here till he was 9, got his start playing in Red Hook projects)

Taj Gibson
Joakim Noah
Sebastian Telfair (should have went to Louisville could have been elite)
Renaldo Balkman
Moe Harkless
Charlie Vilanueva
Kyle O'Quinn
Gary Forbes
Look how I have to reach

. Back then we had Kareem, Dr.J, Chris Mullin, Bernard King, Bob Cousy, Dolph Shayes. Not that long ago we had Ron Artest, Elton Brand, Kenny Anderson, Jamaal Tinsley, Rafer Alston, Kenny Smith, Wally World, Anthony Mason, Rolando Blackman, Jamal Mashburn, etc.
I think the Knicks being so bad from 2000-2010 is a big reason why too.