If Mike Munchak goes down, he’ll do so surrounded by people he knows and trusts. That is at the heart of Munchak’s makeover of the Titans coaching staff. He’s doing it his way. With his job hanging in the balance, he’s employing a staff that suits him and meshes with his philosophy. “The urgency is that we can’t take a step back. We can’t afford to have it in any phase — offense, defense and special teams,” Munchak said.