I'm a Chicago Bulls fan as well, but as of now, I don't think so. The Heat made minor changes to their roster so I suppose they'll be as dominant as last year, perhaps even more since they are more synced. Meanwhile, this year will be an adjusting year for the Bulls after last season without Rose. I'm sure they'll put up a fight, and I'm sure they can get to the Eastern Conference Finals, but that will be it.
Of course, this is all based on minimal preseason game watches, roster stats, and speculation. Nobody gave the Bulls much of a chance last year without Rose, and yet they excelled their expectations, so who knows.