Before Brady left New England, Peyton Manning's NFL free agency was one of the most talked about in decades. The quarterback's choice was shrouded in secrecy, and marked by process that included head coaches wearing disguises, decoy SUVs, and tracking a private jet. Peter King tells SI 's Jessica Smetana about some of the best stories from Peyton Manning’s free agency in 2012, and how Manning to the Broncos came to be.