Lean Blog Interviews

My guest for Episode #531 of the Lean Blog Interviews Podcast is Dr. Melisa Buie, a seasoned operations and engineering leader with decades of experience in high-tech manufacturing. Episode page with video, transcript, and more Melisa has held senior roles at companies like Lam Research, Applied Materials, and Coherent, where she led large-scale Lean transformations and helped drive cultural change across global operations. With a PhD in nuclear engineering and plasma physics, Melisa brings a rare combination of technical depth and people-centered leadership to her work. In this episode, we explore Melisa’s Lean journey — from her early days in Six Sigma to becoming a global Lean leader at Coherent. She shares how her perspective shifted from project-based improvement to empowering teams with daily problem-solving skills. Melisa discusses the critical role of psychological safety in building a continuous improvement culture, and how giving people "permission to improve" must be backed by leadership behavior a