http://blogs.tennessean.com/titans/2013/09/08/munchak-credits-jerrys-defense/ The Titans allowed the Steelers just 195 yards and sacked quarterback Ben Roethlisberger five times. Asked about the impact of new senior assistant/defense Gregg Williams, coach Mike Munchak made sure to credit defensive coordinator Jerry Gray. “Jerry called the game. That is Jerry’s defense. It’s the whole staff’s defense,” Munchak said. “But Jerry called the game and called a great game.” I'm a bit confused.Isn't Gregg Williams the one who has a lot to do with this defense.I find it odd that most of the credit is given to Gray.