Walmart is kicking off 2026 with one of its biggest leadership shake-ups in years, betting that a tighter, more tech-centric org chart will help it stay ahead in the AI-fueled retail arms race. Incoming CEO John Furner, a 32-year Walmart veteran, is reshaping the top team around a simple idea: centralize the platforms, free the front lines, and move faster for shoppers and members.​

At the center of the revamp is a new power role: chief growth officer for Walmart Inc., handed to Seth Dallaire, who has quietly become one of the most important people in the retail media world. Dallaire has already spent the past few years turning Walmart’s ad, data, and membership engines into serious business lines; now he gets the keys to the whole growth stack, from Walmart Connect and Walmart+ to Walmart Data Ventures, Vizio and a global marketplace platform that spans geographies and formats. The message is clear: Walmart doesn’t just see itself as a brick-and-mortar giant dabbling in digital anymore; it wants to be a full-blown platforms company that monetizes attention, data, and logistics as aggressively as it sells groceries and paper towels.​

On the operations side, the company is lining up leaders with deep execution and e-commerce muscle to run its three big engines: Walmart U.S., Walmart International, and Sam’s Club. David Guggina, currently the executive vice president and chief eCommerce officer for Walmart U.S., will step into the role of president and CEO of Walmart U.S., taking over the largest retail business in the country at a moment when online and in-store experiences are blurring faster than ever. Guggina has been a key architect of Walmart’s rapid-delivery push, helping build capabilities that can now reach about 95% of U.S. households in under three hours, and that operational background is exactly what Walmart wants at the helm as it pushes convenience, assortment, and price in one integrated play.​

Internationally, Walmart is turning to a familiar insider with serious global mileage. Chris Nicholas, currently the president and CEO of Sam’s Club U.S., will move over to lead Walmart International, overseeing operations in 17 countries at a time when growth in markets like Mexico and India is increasingly important to the company’s long-term story. Nicholas has lived and worked in more than 10 countries and held roles as COO of Walmart U.S., CFO of Walmart U.S., and CFO of Walmart International, giving him a rare end-to-end view of both store operations and the finance side of the house. His appointment comes as Kathryn McLay exits the international job, with Walmart signaling that she’ll stay on into the first quarter to support a smooth transition.​

That move at the top of Sam’s Club opens the door for another internal promotion that says a lot about Walmart’s culture of “grow your own” leaders. Latriece Watkins, who started as a Walmart intern back in 1997, will become president and CEO of Sam’s Club U.S. after serving as executive vice president and chief merchandising officer for Walmart U.S. Watkins has been central to reshaping Walmart’s U.S. assortment strategy and tightening execution so that the experience a shopper gets in-store or online feels more consistent, curated, and trustworthy. Bringing that mindset to a membership warehouse model gives Sam’s Club a leader who understands both value and experience — crucial as it competes head-on with Costco and tries to deepen loyalty among small businesses and higher-income households.​

Underneath the org-chart details, the through-line is Walmart’s “people led, tech powered” mantra — and how it translates into strategy as AI starts to rewrite what retail can look like. Furner is blunt about AI “rapidly reshaping retail” and is reorganizing around centralized platforms that can push out shared capabilities — think AI-driven personalization, inventory optimization, ad targeting, or dynamic pricing — across all of Walmart’s segments without everyone building the same tools in silos. For customers and members, the payoff the company is chasing is pretty tangible: faster deliveries, smarter substitutions, better-targeted savings, and digital experiences that feel less like bolted-on websites and more like a single, coherent ecosystem.​

At the same time, these moves highlight how far Walmart has come from its pure-play, low-price, store-first roots. Each week, roughly 270 million customers and members interact with the company across more than 10,750 stores and a web of e-commerce sites in 19 countries, which gives Walmart a data footprint and operational reach that few companies on the planet can match. With fiscal 2025 revenue of $681 billion and about 2.1 million associates worldwide, even small shifts in leadership focus can ripple across supply chains, local jobs, and how communities shop for everyday life. Positioning a growth chief over ad tech, subscription, data, and connected TV, while elevating an e-commerce operator to run the U.S. business, signals that Walmart expects a meaningful slice of its future growth to come from beyond the traditional “fill the cart in a supercenter” routine.​

For investors, partners, and even rivals, the timing also matters. The leadership changes hit on February 1, 2026, aligning with Furner’s move into the CEO seat and effectively setting a new baseline for how the company wants to run itself in what it calls “the new era of retail.” Walmart has been leaning into generative AI for store operations, call centers, and internal workflows, and a more centralized platform structure gives it cleaner lines of sight to roll those tools out faster and scale what works. For brands that advertise in Walmart’s ecosystem or rely on its marketplace to reach customers, Dallaire’s expanded remit could mean more sophisticated ad products, better measurement, and a tighter connection between retail media and actual sales outcomes — something marketers have been clamoring for as cookies fade and first-party retail data becomes gold.​

There is, of course, execution risk baked into any reorg at this scale. Handing new roles to existing insiders minimizes cultural friction but also raises the stakes: these are now the leaders responsible for proving that Walmart can be both a disciplined operator and a nimble tech company at the same time. If they pull it off, shoppers may simply notice that Walmart is a bit easier, faster, and smarter to use — same low prices, fewer headaches, more ways to shop and save. And if they don’t, the company has made it very clear where to look to understand why: the structure, the platforms, and the bets it is placing on AI as the next competitive battleground in global retail.​