Second part of an episode of the « À la French » podcast recorded at DevSummit, this interview brings together Mathieu Grymonprez, Global CDO of the Adeo group (Leroy Merlin, Obramat, Weldom), and hosts Jean-Baptiste Kempf (creator of VLC), Steeve Morin, and Mehdi Medjaoui. Mathieu, 26 years with the company and 8 years as CDO, traces a career path from network-security engineer (his first Check Point firewall) to leading "Digital Tech and Data": after urgently resolving an Oracle database crash in Brazil (2012) and then overhauling the local IT system during six years of expatriation, he rationalized the group's 24 IT systems / sites / PIMs into digital platforms (customer & commerce, supply chain, retail, corporate) backed by a tech radar, documented APIs, and microservices (which became "big products").
His thesis: any transformation is won on two fronts simultaneously, culture and structure, and the digital transformation playbook (V-model → agile, product, more make than buy) is being replayed with AI. On the culture side: reconfiguring to embrace the technology, keeping critical judgment, and above all accountability — responsibility remains human, "it's not the agent's fault." On the structure side: closing the documentation debt, managing agents' rights and permissions. Mindful of the "Retail Apocalypse" failure (Amazon, e-commerce negotiated too late), the watchword is "we won't get caught out again": listen seriously to AI, but with the same values (pragmatism, customer service, leading brand). If ChatGPT builds a better basket than the in-house app, "that's my problem."
À la French
At the board, Mathieu never talks technology but customer experience and ROI; he doesn't even ask for an AI budget, funding the new with the gains (compressing JIRA tickets), in a reuse logic serving the in-store salesperson. He doesn't anticipate the end of developers but an avalanche of requests (P10 projects become P2). On costs, he is confident: token FinOps will follow cloud FinOps, driven by inference chips (TPUs) and open source models catching up (Gemma 4 on a laptop). But model variation is a real production problem (retesting, requantization, silent downgrades), and Google has a "production awareness" that OpenAI or Anthropic do not yet have. His biggest worry: enterprise intelligence lock-in (agentic harness, "adeo.md"), hence the attention to standard Kubernetes, API portability, and memory. He points to the missing open source building block — agent orchestration (registry, lifecycle, permissions, skills) — and corporate memory ("when it's not logical, it's historical"). Final advice: transformation is bespoke; understand the technology mainly so as not to get "taken for a ride" by the pickaxe sellers.