Since Sam Walton's death in 1992, Wal-Mart has gone from being the largest retailer in the world to holding the top spot on the Fortune 500 list as the largest company in the world. Don Soderquist, who was senior vice chairman during that time, played a crucial role in that success. Sam Walton said, "I tried for almost twenty years to hire Don Soderquist . . . But when we really needed him later on, he finally joined up and made a great chief operating officer." Responsible for overseeing ...