Supply Chain Unlocked

Supply Chain Unlocked

Supply Chain Unlocked delivers actionable intelligence for suppliers to Walmart and other retailers. Hosted by Dr. Matthew Waller—renowned supply chain expert, author, and trusted advisor—the show decodes the strategies, technology, and leadership required to win on the world’s biggest retail stage. Each episode blends Dr. Waller’s expertise with insights from industry leaders, innovators, and former retail executives, giving listeners clear and practical strategies to navigate compliance, harness technology, and build stronger partnerships. More than just commentary, the show provides the intelligence and actionable guidance suppliers need to stay ahead in today’s fast-changing supply chain.

Episodes

May 7, 2026 33 mins

Safety is usually treated as a lagging indicator where leaders only react after a claim is filed or an injury occurs. This reactive stance is a massive profit leak and an avoidable human cost that traditional safety walks can no longer manage in complex industrial environments. Vernon O'Donnell, CEO of Voxel, explains how computer vision and AI are flipping this script by identifying risks before the collision happens.

We sit d...

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Cold chain is one of those supply chain functions everyone relies on, yet few people really understand until something melts, spoils, or gets rejected at the dock. We sit down with Cindy Parker, Director of Operations at Americold, to unpack what modern cold chain logistics actually looks like and why it has shifted from “storage at temperature” into a true operations partner for food, grocery, export, and emerging pharmaceutical c...

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Retail doesn’t just use technology anymore, it runs on it, and that changes what leadership looks like at the highest level. We sit down with Vinod Bidarkoppa, Executive Vice President and Chief Technology Officer of Walmart International, to get a clear view of how modern omnichannel retail, supply chain systems, marketplace growth, and in-store operations connect through a single tech strategy.

We dig into the idea behin...

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Supply chain leaders love to ask for “the model,” but the hardest part is figuring out what the real problem is in the first place. We sit down with Georgia Tech professor Benoit Montreuil, Executive Director of the Supply Chain and Logistics Institute, to unpack how his team works with major partners like Amazon, Home Depot, and UPS to tackle frontier logistics challenges with real data, real constraints, and real accountability. ...

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Volatility isn’t a phase to ride out, it’s the operating system of modern logistics. We sit down with Michael Zimmerman, partner at Kearney and veteran of Fortune 500 supply chains, to unpack how structural shocks from trade policy, weather, and geopolitics have rewritten the rules of planning, sourcing, and execution. The throughline is clear: decision advantage beats tool accumulation.

We dig into layered planning that r...

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What if your supply chain could answer hard questions in minutes instead of days? We sit down with Laurie Tuschen, Head of Customer Strategy at Optilogic, to explore how modern design stacks blend optimization, simulation, and AI to deliver faster, smarter decisions without adding new buildings or bloated spreadsheets. From the early days of mainframes to sensitivity-at-scale tools, Laurie shows how teams can test uncertainty direc...

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Checkout isn’t a place anymore. It’s a strategy. We dive into how modern POS now spans mobile devices in the aisle, self-checkout, curbside pickup, and scan-and-go, and what that means for customer experience, associate workflows, and the bottom line. With guest Michael Leister, who helped deploy hundreds of thousands of devices across Walmart and Sam’s Club and later supported Amazon’s last mile, we unpack the operational playbook...

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What happens when a Navy nuclear power alum and finance PhD turns his focus to trucking? Sam Tibbs joins us to make a bold case: freight doesn’t have a tech problem, it has an incentive problem. He traces the unlikely route from teaching and data science to building the tools that exposed lane-level profit and drove the most-used variables in Sonar, then explains why today’s rate products miss the mark. If your pricing relies on pa...

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December 25, 2025 42 mins

Orders don’t move without clean data. We go deep with Jonathan Kish, SVP at Orderful, to reveal why EDI still runs global retail, where it quietly breaks omnichannel performance, and how modern teams can turn a tangle of maps and testing into a fast, reliable growth engine. From empty shelves to OTIF deductions, the symptoms are familiar; the root causes live in outdated mapping, slow retailer testing cycles, and inventory that nev...

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Ever wonder why a “standard” return policy can feel so unfair at the counter? We unpack the psychology and operations behind returns with Dr. Travis Tokar, Professor of Supply Chain Management at TCU, and explore how loss aversion, fairness, and frontline interactions shape customer reactions far more than a PDF policy ever will.

We walk through the five policy levers: money, exchange, time, scope, effort, and show which o...

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What if your warehouse could flex labor across sites on demand, cut safety risk, and feed cleaner data into your WMS—all without a massive retrofit? We sit down with Brian Nachtigall, VP & GM of Vaux at ArcBest, to unpack smart autonomy that blends autonomous forklifts with remote teleoperation for a fast, pragmatic path to automation. No gimmicks, no buzzword soup—just a clear look at how deep learning, digital twins, and disc...

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November 13, 2025 44 mins

Money should move as fast as your cart. We sit down with Garrett Harper, Head of Business Development at Squads Labs, to unpack how Stablecoin is quietly becoming the payment rail that matches modern retail speed: instant refunds, cheaper settlements, and programmable rewards that actually feel valuable. If “buy online, pick up in store” reset fulfillment, Stablecoin is poised to reset how cash flows through every step of the retai...

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October 30, 2025 35 mins

A single chat that fills your cart, schedules pickup, and optimizes delivery isn’t sci-fi anymore. We break down Walmart’s new partnership with OpenAI and show how turning conversation into checkout could reshape margins, loyalty, and the last mile—without asking shoppers to open an app.

We start with what the integration actually does: ChatGPT pulls live Walmart prices, builds context-aware baskets, and enables instant ch...

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