He should be teached on how to play the right way...but most of all, doc should also utilize him and get him in rhythm, if he is played limited minutes, what you see is limited production.
I want to see Jeff Green utilize his athleticism more by mastering a one dribbledrive pullup jump shot from around 12-15 ft. I believe that he can be good at that because he can jump high and his shot will be unblockable, he needs to work his ass off on that one and make a living out of it, I believe no SF can touch his shot if he masters it. Didn't we at one point compared this guy to the late Len Bias?...well its because he can be like that, he just need touches andwork on his game.
He should also stop camping at the 3 point area and utilize whatever basketball IQ is left in his brain to stop ball watchin and move like AB via backdoor cuts, if his man is ballwatching which i notice a lot of times then he should make his move. A back door cut will usually result in a close range shot and possible free throw shot if fouled by his man.
His D is decent as it is, he just needs to stay infront of his man more.