His offensive inconsisency (i.e., occasional offensive lethargy) means that you can't trust him in a specific offensive role night in and night out. It's clear he can't carry a team on a regular basis. However, his 'D' is petty consistent and he does have those occasional amazing nights on the offensive end.
He's been more active on offense more consistenly recently, but this always seems to be 'fools gold' with him -- it doesn't last. If we get a guy who can provide consistent offense (like PP for example), then reliance on Green is less important and he can be a very good defender who can bring it offensively from time to time. That type of player has positive value and is a plus for this team. But if I were Danny, I'd play aloof about trading him and hope that a team that lusts for the 'good Jeff' is willing to offer a hard-to-refuse trade for him. If it happens, grab it; if it doesn't, he's still a good player who will win you a game 10 times a year -- and perhaps (in a great world) once per playoff series (which is all you can hope for). But he needs to be a 4th (at most 3rd) option on the offensive side -- except on 'good Jeff' days.