There comes a time in every NFL franchise's life when the face of that franchise changes.
It happened to Pittsburgh when Ben Roethlisberger was replaced by Troy Polamalu as the face of the Steelers. It's happening in Detroit before it even really began, with Calvin Johnson becoming the identity of the team instead of Ndamukong Suh. It almost happened in Denver last season with Tim Tebow. And it was about to happen in Baltimore to Ray Lewis with Ed Reed and Terrell Suggs. But Lewis seemed to almost will himself back into our consciousness as the face of the Ravens.
(It happened when LeBron James took his talents to South Beach to put it onto a larger, more universal perspective.)
Right now, it might be happening to the Bears. "As Briggs goes, the Bears go," seems to be the new saying running its own marathon throughout the city. But Lance Briggs is not trying to have or hear it.