Jim Hackett started his leadership career as a third-string center on the University of Michigan football team, where he kept a group of young-back ups motivated to take on some of the nation’s best players in practice every day. He rose to become the youngest CEO of Steelcase furniture at the ripe age of 39, turning the Fortune 500 around during trying times. After two decades, he accepted the University of Michigan’s invitation to return as interim athletic director – “Some jobs are for God and country,” as he explains -- then became Ford Motor Company’s CEO, one of the world’s biggest leadership jobs. One of his takeaways: “The softest pillow in the world is a clean conscience.”