If im DA the only way im trading Green is for a legit starting Center who is Rondo's age or younger.
If you look around the NBA the two toughest positions to fill are..
1. Starting Center, there are very few starting caliber centers in todays NBA.
2. big Athletic SFs, there are a handful of truly elite athletes with true SF skills and legit SF/PF size. Lebron, Gay, Durant, George, Green, Melo
There are a ton of SFs. It doesn't compare to the lack of quality big men.
Lebron
Durant
Melo
Pierce
Deng
George
Gay
Parsons
Leonard
Batum
Green
Gallinari
Iguodala
Smith
T. Young
Prince
H. Barnes
Kidd-Gilchrist
Aminu
T. Harris
Granger
That's a bunch of quality SFs.
My point wasn't that there art good SFs in the NBA its that SF with stretch 4 size, solid SF skill sets, and elite athleticism are harder to come by than PGs, SGs, and Pfs. This is becoming a important position in today's small ball nba.
Lebron x
Durant x
Melo x
Pierce
Deng x (? on athleticism)
George x
Gay x
Parsons
Leonard x
Batum x
Green x
Gallinari - athleticism
Iguodala - (size makes him boarder line)
Smith - Pf skill set
T. Young - Pf skill set
Prince - athleticism (used to have it)
H. Barnes x
Kidd-Gilchrist - (boarder line on size)
Aminu - Pf skill set
T. Harris x
Granger x (if healthy)
That makes 12 -14 player in the whole NBA
If the starting caliber centers (who are not PFs playing center) are..
Howard
Jefferson
M Gasol
Monroe
Vucevic
B Lopez
Cousins
Noah
Asik
Hibbert
Chandler
Okafor
Pekovic
(this is a very debatable list)
but my point is Jeff Green plays a hard to fill position. Center is more valuable but big SF is second, and PG is third.
The current NBA doesn't conform very well to the traditional 5,4,3,2,1 basketball positions. The small balling of the league has lead to the prevalence of 6'2 SG/PGs, 6'5 SF/SGs,, 6'7 PF/SFs and long athletic c/pfs.