Big-box retailer Walmart (WMT) has spent more than a decade navigating the retail world under the leadership of Doug McMillon. He stepped into the CEO role in February 2014 and carried the company through a period defined by the pandemic, supply-chain strain, inflationary pressure, and tariff adjustments. Through those demanding years, the company strengthened its identity as an e-commerce powerhouse while maintaining its reach as a household name. Now, though, a new transition sits at the center of Walma ...