Just because you want to question the career of Marbury. He was great in Minny, went to NJ and carried them on most nights (23pts 8.5Ast), played good here as well (I'm only talking about basketball here). He was and probably still is better than any PG we have on the bench besides Davis.
The difference between Marbury and Antoni is that Marbury went to other teams and at least continued to put up solid PG stats. Meanwhile, Antoni can't even reproduce what he was generating in PHX despite being labeled "offensive genius".
Marbury would probably mention things like that.