Are you ready for some football?! Teams of the National Football   League, the “granddaddy of all sports,” opened training camps this week in preparation for Opening Night on Thursday, September 10. And the Houston   Texans, led by President Jamey Rootes, is up first as they kick off the NFL   season at the Kansas City Chiefs. But Jamey took a timeout to chat with Rob   Cornilles about the unprecedented challenges facing the NFL, the impact one player (J.J. Watt) has had on a sport and a city, and the leadership lessons learned from working for two of the most iconic families in sports history.