By now you've probably heard the theory about linebacker Keith Bulluck, and how the Titans might benefit from his season-ending knee injury. It goes like this: As a free agent coming off a torn ACL, teams might be less willing to throw money at him, so the Titans could re-sign him at a bargain price. The 10th-year pro's agent isn't buying it. "I'm not concerned or worried about anything in regard to Keith,'' Gary Wichard said. "Every guy's running around with some kind of scar on him. He'll be in great shape, work hard, and be ready to go. And he'll be a highly paid player next year, too. Plenty of people know about Keith Bulluck and what he can do.'' Bulluck