Rugby is a serious global business that is scaling up, and facing regional and global challenges and revolutions. WRU CEO and Chair of GlobalWelsh Martyn Phillips, Sam Warburton, the former Wales, Lions and Cardiff Blues captain and THE ref Nigel Owens discuss all aspects of the sport: its challenges, both on and off the field, and the culture that underpins the essence of the game, in conversation with Carolyn Hitt, author of Wales Play in Red.