FILE - In this July 25, 2014, file photo, Denver Broncos quarterback Peyton Manning throws football during drills at the morning session of the team's NFL football training camp in Englewood, Colo.Manning was Denver's de facto drill sergeant over the last four seasons, and as they begin the post-Peyton era, the Broncos say they're just as fastidious in his wake as they were in his presence. (AP Photo)