What's Next for Veteran QBs Brady, Brees, and Rivers?

Philip Rivers is officially ending his run with the Chargers and entering free agency. Fellow veteran QBs Tom Brady and Drew Brees are considering their options. The NFL quarterback market is filled with possibility, as the golden era of pocket passers may be ending - and the era of mobile quarterbacks just beginning. ESPN's Dan Graziano runs down the different destinies the elder statesmen of the NFL might be headed for this offseason.