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.
Ep. 20 Part 1 - Conduct Over Chaos: Engineering a Massive Safety Culture
Treating operators like spreadsheet data will hemorrhage your frontline workforce. Craig Harper, retired EVP of J.B. Hunt, explains how prioritizing empathy overhauled one of the nation's largest logistics networks. Craig details leading 30,000 employees through complex cultural shifts. He breaks down why structural changes fail when executives refuse to step out of the boardroom to clear actual supply chain bottlenecks. We explore the financial impact of trading truck numbers for human fac...
29 Oct 2026
Ep. 19 - Securing Operations: Visibility Without the Cloud
Unwatched virtual entry points are silently threatening global supply chains. Brianna Sullivan, CEO of Iolite Secure, breaks down how threat actors exploit overlooked infrastructure to halt operations. Most security tools focus entirely on enterprise IT, leaving operational technology completely blind. We examine why legacy hardware, HVAC systems, and disconnected logistics assets are highly vulnerable to ransomware attacks. Operators on the front lines need a way to spot anomalous device com...
15 Oct 2026
Ep. 18 - Applied vs Generative: Structuring True AI Workflows
The retail industry wastes millions of human hours building dashboards no one reads. Data science veteran Ravi Sharma joins the show to explain how agentic workflows are replacing stagnant reporting. Most organizations misunderstand artificial intelligence, treating it as a weekend project rather than a complex integration of machine learning and domain knowledge. Ravi breaks down why generative models are simply the user interface, while causal models do the heavy analytical lifting. He deta...
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