Clifford Hudson was the CEO of Sonic, the largest drive-in fast-food chain in America. Under Cliff's leadership, Sonic grew from $800 million to $4.5 billion in annual revenue and to more than 3,600 locations. Cliff joins Adam to share his journey and his best lessons and advice. Cliff and Adam discuss a wide range of topics: leadership, career success, communication, sales, growth and scale, driving technological change and innovation, and much more.