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Most Manufacturers Implement Lean Too Early. And It Costs Them.
Most manufacturers implement Lean too early. And it costs them. If you need to improve now, do not implement Lean. When a plant is under pressure to improve, the instinct is to reach for Lean. Kaizen events. Value stream mapping. 5S blitzes. It looks like action. It feels like progress. But plants that are under pressure to improve have something in common: they always have known problems they aren't solving. And if you have problems you aren't successfully solving, the pro

Mac Davis
2 min read


Lean is Irrelevant to your Operation Right Now.
Lean is irrelevant to your operation right now. Not because it doesn't work. But because if you keep having the same problems, which is where most of industry lives, you have a control problem. And Lean doesn't fix control problems. It hides them. Here's what a control problem looks like: An operator puts the wrong date/label/product/lid/quantity on the wrong box/pallet/product, and now you're scrapping, reworking, or apologizing your way out of another disaster. This happe

Mac Davis
2 min read


Bad Accountability Beats a Good System Every Time.
Everyone in industry knows Deming's line: "A bad system beats a good person every time." It's true. Systems make success. But systems require a foundation. Without it, they don't work. We can prove this experimentally. Lean is one of the greatest system-building tools ever conceived. And it fails the vast majority of the time. The statistics are clear and supported by thousands of iterations. Why does it fail? Ask the Lean practitioners and they'll tell you: leadership. But i

Mac Davis
2 min read


Bad Systems Beat Good Leaders
"A bad system will beat a good person every time." - Deming We've all seen the stats, they're clear: 70–90% of Lean, Six Sigma, and TPM implementations fail. The process excellence community's explanation: Leadership. "Superficial commitment." "Treats lean as a toolbox, not a culture." "Weak supervisors." "Doesn't give the floor a voice." The objective function is: We said do this and it didn't happen. It must be the leader's fault. But we already know that weak operational s

Mac Davis
2 min read


The Irony of Lean: Why Many Implementations Fall Short
Lean is arguably one of the most powerful and comprehensive frameworks for process improvement ever developed. Yet, studies show that 70-95% of Lean initiatives fail to sustain gains, often ending up costing more than they deliver. Applying Lean without the right groundwork completed can actually hinder progress rather than help it. And without the right prerequisites in place, Lean will fail every time. How does that happen? Lean is celebrated for a reason, it’s transformati

Mac Davis
2 min read
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