"Yeah, they were the worst defense," Butler said. "But you look at the players, we don't have the worst defensive players. These are guys who are Super Bowl champions, Pro Bowls at one point. These are great teammates. These are great football players.
"You get a guy like Rob, you get a guy like Keenan Lewis and you add him to the secondary, you get a guy like me who can come in and help guys pick up this defense, and you're going to see a hell of a defense. That's what I'm expecting. A hell of a defense.
"We've already got the players to be the No. 1 defense. You get a defensive coordinator in there, a guy who's going to be compassionate and convey that passion to the players, I wouldn't be surprised if we were the No. 1 defense in all categories next year."