I suppose one could argue that their D generated three takeaways and scored a TD. But really, none of those were great defensive plays - they were offensive blunders: a miscommunication on a route, a perfect pass that bounced off the receiver's chest and into the hands of a defender, and a free rusher causing a strip sack. (On the strip, Romo said Josh missed the hot route to Motor, but I thought Motor should have blocked the guy.)
By all rights, the Bills should have put up more than 50 points on that D.