I'm having some trouble with that article. Did he really do his own thing? If so, when and what? when was this reported? They say it in the article that Rob Demovsky says that's what happened, but then they put up a tweet that doesn't say that at all. At least not to me.
Rob says he went out of his way to distance himself from Barry's defense, and that I remember. Someone asked him a question about why something on defense was a certain way and he said, paraphrased, ask Joe, it's his defense. Basically saying, I don't like, but it's what the DC says we have to do.
But I don't remember anything happening or being said he went and did his own thing and other than claim that, this article doesn't really give any proof of it either.