Show notes: <a href='https://www.leanblog.org/25'>https://www.leanblog.org/25</a>
Remastered July 2021
For Episode #25, I'm pleased to have Dr. Mark Spearman, Founder and President/CEO of Factory Physics, Inc. (www.factoryphysics.com). You may know Dr. Spearman from his book, co-authored with Dr. Wally Hopp, Factory Physics. If there is ONE operations management textbook to own, this is it (it's well worth the cost). I was fortunate, as an Industrial Engineering undergrad at Northwestern, to take Dr. Spearman's operations course. The introduction given about Lean and the Factory Physics / Little's Law concepts (among others) have served me very well during my career. In the Podcast, we talk about his company, Factory Physics, and the work he is doing today in the manufacturing world.
Show Notes, Links, and Keywords Episode #25
<ul><li>Keywords: Throughput, Lean Six Sigma, Lean, WIP, work in process, continuous improvement, variation, flow, Dell Computer</li>
<li>Dr. Spearman explains The 3 Buffers: Inventory, Time, and Capacity</li>
</ul>

Show notes: https://www.leanblog.org/25 Remastered July 2021 For Episode #25, I'm pleased to have Dr. Mark Spearman, Founder and President/CEO of Factory Physics, Inc. (www.factoryphysics.com). You may know Dr. Spearman from his book, co-authored with Dr. Wally Hopp, Factory Physics. If there is ONE operations management textbook to own, this is it (it's well worth the cost). I was fortunate, as an Industrial Engineering undergrad at Northwestern, to take Dr. Spearman's operations course. The introduction given about Lean and the Factory Physics / Little's Law concepts (among others) have served me very well during my career. In the Podcast, we talk about his company, Factory Physics, and the work he is doing today in the manufacturing world. Show Notes, Links, and Keywords Episode #25 Keywords: Throughput, Lean Six Sigma, Lean, WIP, work in process, continuous improvement, variation, flow, Dell Computer Dr. Spearman explains The 3 Buffers: Inventory, Time, and Capacity

Show notes: <a href="https://www.leanblog.org/25" rel="noopener noreferrer">https://www.leanblog.org/25</a>
Remastered July 2021
For Episode #25, I'm pleased to have Dr. Mark Spearman, Founder and President/CEO of Factory Physics, Inc. (www.factoryphysics.com). You may know Dr. Spearman from his book, co-authored with Dr. Wally Hopp, Factory Physics. If there is ONE operations management textbook to own, this is it (it's well worth the cost). I was fortunate, as an Industrial Engineering undergrad at Northwestern, to take Dr. Spearman's operations course. The introduction given about Lean and the Factory Physics / Little's Law concepts (among others) have served me very well during my career. In the Podcast, we talk about his company, Factory Physics, and the work he is doing today in the manufacturing world.
Show Notes, Links, and Keywords Episode #25
<ul><li>Keywords: Throughput, Lean Six Sigma, Lean, WIP, work in process, continuous improvement, variation, flow, Dell Computer</li>
<li>Dr. Spearman explains The 3 Buffers: Inventory, Time, and Capacity</li>
</ul>

Mark Spearman, Co-Author of the Operations Textbook Factory Physics *

Since 2006, the Lean Blog Interviews podcast has featured in-depth, candid conversations with leaders, thinkers, and doers in the world of Lean and continuous improvement. Hosted by Mark Graban—author, consultant, and longtime Lean practitioner—the show explores how Lean principles are being applied across industries, including healthcare, manufacturing, startups, and more.
What sets this podcast apart? We go beyond tools and buzzwords. Our guests share real-world stories of success, struggle, learning, and leadership. Whether you’re a seasoned Lean veteran or just getting started, you’ll gain practical insights and fresh perspectives that you can take back to your own organization.
Topics include:
<ul>
<li>
Lean as a management system and cultural transformation—not just a toolbox
</li>
<li>
Continuous improvement and problem-solving, at every level
</li>
<li>
Leadership behaviors that support real change
</li>
<li>
Psychological safety as a foundation for improvement
</li>
<li>
Lessons from the Toyota Production System, Lean Startup, and beyond
</li>
<li>
Candid stories about mistakes—and what we learn from them
</li>
</ul>
We don’t talk much about “Lean Six Sigma” here. But if you believe improvement is about people first—this podcast is for you.
Many episodes feature a special focus on Lean in healthcare, reflecting Mark’s deep work in that field. Hear from leaders working to improve patient safety, reduce waste, and build cultures of respect and learning.
Find all episodes and show notes at <a class="decorated-link" href="https://www.leancast.org">www.LeanCast.org</a>. Learn more about Mark and his work at <a class="decorated-link" href="https://www.leanblog.org">www.LeanBlog.org</a>. Questions or feedback? Email <a class="decorated-link cursor-pointer">mark@leanblog.org </a>

Business

Management

Since 2006, the Lean Blog Interviews podcast has featured in-depth, candid conversations with leaders, thinkers, and doers in the world of Lean and continuous improvement. Hosted by Mark Graban—author, consultant, and longtime Lean practitioner—the show explores how Lean principles are being applied across industries, including healthcare, manufacturing, startups, and more. What sets this podcast apart? We go beyond tools and buzzwords. Our guests share real-world stories of success, struggle, learning, and leadership. Whether you’re a seasoned Lean veteran or just getting started, you’ll gain practical insights and fresh perspectives that you can take back to your own organization. Topics include: Lean as a management system and cultural transformation—not just a toolbox Continuous improvement and problem-solving, at every level Leadership behaviors that support real change Psychological safety as a foundation for improvement Lessons from the Toyota Production System, Lean Startup, and beyond Candid stories about mistakes—and what we learn from them We don’t talk much about “Lean Six Sigma” here. But if you believe improvement is about people first—this podcast is for you. Many episodes feature a special focus on Lean in healthcare, reflecting Mark’s deep work in that field. Hear from leaders working to improve patient safety, reduce waste, and build cultures of respect and learning. Find all episodes and show notes at www.LeanCast.org.Learn more about Mark and his work at www.LeanBlog.org.Questions or feedback? Email mark@leanblog.org

Since 2006, the Lean Blog Interviews podcast has featured in-depth, candid conversations with leaders, thinkers, and doers in the world of Lean and continuous improvement. Hosted by Mark Graban—author, consultant, and longtime Lean practitioner—the show explores how Lean principles are being applied across industries, including healthcare, manufacturing, startups, and more.
What sets this podcast apart? We go beyond tools and buzzwords. Our guests share real-world stories of success, struggle, learning, and leadership. Whether you’re a seasoned Lean veteran or just getting started, you’ll gain practical insights and fresh perspectives that you can take back to your own organization.
Topics include:
<ul>
<li>
Lean as a management system and cultural transformation—not just a toolbox
</li>
<li>
Continuous improvement and problem-solving, at every level
</li>
<li>
Leadership behaviors that support real change
</li>
<li>
Psychological safety as a foundation for improvement
</li>
<li>
Lessons from the Toyota Production System, Lean Startup, and beyond
</li>
<li>
Candid stories about mistakes—and what we learn from them
</li>
</ul>
We don’t talk much about “Lean Six Sigma” here. But if you believe improvement is about people first—this podcast is for you.
Many episodes feature a special focus on Lean in healthcare, reflecting Mark’s deep work in that field. Hear from leaders working to improve patient safety, reduce waste, and build cultures of respect and learning.
Find all episodes and show notes at <a href="https://www.leancast.org" rel="noopener noreferrer">www.LeanCast.org</a>. Learn more about Mark and his work at <a href="https://www.leanblog.org" rel="noopener noreferrer">www.LeanBlog.org</a>. Questions or feedback? Email <a rel="noopener noreferrer">mark@leanblog.org&nbsp;</a>

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Mark Spearman, Co-Author of the Operations Textbook Factory Physics *

Mark Spearman, Co-Author of the Operations Textbook Factory Physics *

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