Detroit is breaking in new play callers on each side of the ball. In terms of those operations, particularly on offense, with new coordinator John Morton -- from flow of the game to getting plays in swiftly -- Campbell said it went better than he expected out of the gate. However, the struggles between the whistles overshadowed any positives.

Dan Campbell said he plans to start third-year quarterback Hendon Hooker on Friday against Atlanta in the Detroit Lions' second preseason game.