The Lions coaches insist we've hardly had a glimpse of their new-look defense. And there's no question one of the biggest pieces to this puzzle, defensive tackle Grady Jackson, has been kept under wraps. At 36, the 13-year NFL veteran missed most of the offseason recovering from February knee surgery, then was limited in camp and preseason. "It's a long season and you're trying not to beat your body down through preseason and all that," Jackson said. "So you just gotta be ready." "I'm ready," he said, laughing. "I mean, this is when it's time to step up and play ball. It's a new start and we've got the foundation to lay. It's time to start laying the bricks now and (work on) completing this house."