I get the arguments about everything going on around him and certainly players have come back from worse. I just get the feeling he'll never again be that 70-point player. Maybe a 55-60 guy, which is still good, but not the guy suited to being the face of your team.
Also, he's played an awful lot at wing the last couple seasons, which tells me they're either A) trying to help him in terms of his confidence, or B) they think he's not that effective at center anymore.
If I'm a team trying to make a trade for him, I'm A) not doing it without a relatively substantial "damaged goods" discount, and B) doing it with the understanding that he may just be a winger at this point in his career, for the long term.