I just don't see anything in Green yet. He has value as a minutes sponge for average production. That's nice, as with him on your team you can basically be guaranteed passable all-around play from two spots on the floor when your starters are resting. Good to have, but it seems to be a far cry from "best in the trade" let alone "borderline allstar," a label that has actually been seriously thrown around.
Basically, I don't see any difference between Green and, say, Marvin Williams, or a slightly worse version of Al Harrington (a guy who was statistically almost exactly an average small forward able to play 35+ MPG to get to his respectable numbers).
Just for thought:
Clearly, Green's greater contributions are currently on offense, so we'll concentrate there:
PER:
55th for PFs (around Al Harrington), 29th for SFs (around turkoglu/julian wright)
Rebound Rate:
75th PFs (Gallinari/Diaw/Rashard Lewis), 33rd for SFs (Outlaw, Granger, Al Thornton)
True Shooting:
42nd PFs (Favors, Josh Smith), 27th SF (Marion/Deng/Chandler)
Assist Rate:
44th PFs (Zach Randolph, Bosh), 49th SF (Marion, Outlaw, Chandler)
Estimated Wins:
41st PFs (Diaw, Gibson, Camby, Wilcox), 25th SFs (Marvin W, Battier, Delfino)
So what does he do above average? What does he doe that isn't replaceable with just a little planning? I don't see anything yet.
So it seems like he's a low-middle starter at SF and deep bench PF. He ends up looking a lot like Marvin, Marion, Outlaw, basically all of whom are thought to be currently overpaid at salaries quite a bit lower than what Green has been rumored to be after. Hopefully he either flips a switch, signs for much less than expected, or is not in the future plans.