Rivalry isn't one of the seven deadly sins-but perhaps it should be the unofficial eighth. In the Redefining Rivalries podcast, sponsor generated content for Billions on SHOWTIME, produced by WSJ. Custom Studios, a unit of the advertising department of The Wall Street Journal, the intricacies and impact of competition will be explored in four distinct areas. On this episode, which should really be titled, "Battle of the Grandmas," we'll examine the unique rivalries that boiled to the surface when a restaurant hired "nonnas" as chefs. WSJ. Custom Studios is a unit of The Wall Street Journal advertising department. The Wall Street Journal news organization was not involved in the creation of this content.