I think Vince is delusional if he thinks they're making the playoffs. As putrid as the East is probably going to be, I don't see the Nets making the playoffs. At this point, I don't see them as any better than 9th or 10 in the East. I see Atlanta, Philly, Boston, Orlando, Cleveland, Detroit, Toronto, and Washington all being better than them still. I also think Indiana could be better then them, and depending on what happens with Ben Gordon, the Bulls could too. For that matter, if the 'Cats stay healthy, they could as well.
Despite all this rambling here though, in the long run, the East is so pitiful and wide open that anyone can make it. So I'd say the Nets have as good a chance at making the playoffs as any other team outside of Boston, Detroit, Orlando and Cleveland.