Zach Orr wasn't the reason the Defense missed those tackles on the 75 yard TD in the 4th quarter.
Also doubt he was the reason Eddie Jackson was out of position on Chase's TD at the end of the first half.
Orr's blitzes haven't seemed to get home as well as McDonald's did last season is the only thing I think we've seen relatively often that is more or less directly attributable to the DC. It's entirely plausible that the issues in the secondary are because Orr's not coaching them properly, but I tend to think its been more a combination of individual mistakes. In either case, the secondary is loaded with talent, so as long as they stay healthy I think those mistakes can be cleaned up.
Roquon has seemed a bit less dominant to me this year than in past years. Not sure if that's real or imagined, or if real, what the cause might be. He did make a couple real nice plays yesterday, so that was good to see.