DeCamillis is a good coach, people, and he's proven it over the course of a long career.
Sometimes, it really is possible for a unit to underperform for a reason that's not entirely on the unit coach.
That said, I wouldn't be shocked to see DeCamillis exit gracefully after the season is over in a few weeks.
When asked whether Jason Garrett is the right head coach for this team: "I don't think there is anyone else that could. I think he is an unbelievable coach. We've responded to him and he has made us better football players, better people. If you watch us I think we play with a certain relentless spirit." --Sean Lee