I watch Jeff Green closely every time he is on the court, mostly because I am pulling for him to do well. I get an extra jolt of glad when he scores. But it's hard to believe that anyone watching him play this year can be happy with the overall product. Forget about the contract (I believe the contract is only mildly relevant), he has been a non-factor in all but 3 games. And it's not just poor stats -- he isn't providing 'intangibles' either in my opinion.
He is at the disappointing stage right now, NOT at the bust stage. Anyone who already 'knows' he is a bust is concluding too soon. There is still a component of role confusion that seems to be present which tells me it's possible that this may be solvable.
I wouldn't be shocked if the bust-sayers are correct in the long run but it is definitely too early to conclude.