Is Derrick Brooks on his way out?

If the Bucs interest in Lance Briggs is legit and the team was able to acquire him via trade, it would leave Tampa with three weakside linebackers ( Cato June and Derrick Brooks being the second and third). While Brooks still has plenty in the tank, he's not the player he was just a few years ago. June and Briggs would enter camps with long term contracts and Brooks wouldn't. Hmmm.