Seventeen years ago, I scored a perfect mark in Industrial Engineering. At the time, I was fascinated by the scientific principles behind optimizing work. How time, motion, and method could be systematically improved. But somewhere between graduation and a 14-year career in manufacturing, I lost sight of those fundamentals.
I got caught up in what the industry was selling: Lean, Six Sigma, ISO and IATF. I pursued certifications, implemented frameworks, and spoke the language of modern operations management. What I didn’t realize was that I was decorating branches without understanding the trunk they grew from.
The Certification Arms Race
Driven by a need to appear credible, I accumulated credentials like Lean Six Sigma Black Belt and IRCA-certified ISO Lead Auditor. Each certification added a line to my LinkedIn profile and seemed to impress prospective clients.
Yet beneath the polished exterior, something felt hollow. I was collecting validation rather than building depth. The more certified I became, the less confident I felt about what I actually knew.
Pattern Recognition, Ignored
A peculiar thing kept happening, each time I encountered a “modern” operations tool, I experienced a flash of recognition:
Value Stream Mapping resembled process flow analysis. The 5S methodology was essentially organized method study. Standard Work looked like time study combined with best practices. Kaizen echoed Frederick Taylor’s principles of continuous improvement, just rebranded.
But I consistently dismissed these observations. I assumed the contemporary versions represented advancement, not repackaging. I didn’t trust my own pattern recognition because it contradicted the prevailing narrative that these were new innovations.
What I was really sensing: I had learned these concepts 17 years earlier, just under different names.
What the Market Actually Wants
When I launched my consulting practice ten months ago, my value proposition was clear: integrate Lean methodologies with ISO/IATF compliance. Both disciplines typically operated in isolation, and I positioned myself as the bridge.
But working with small and medium manufacturers revealed an uncomfortable truth.
Most didn’t want operational systems. They wanted certification, a credential that would satisfy a customer audit or signal competence to the market.
I would arrive prepared to analyze and improve their operations. They would ask: “How quickly can we get certified?”
The gap became apparent. They didn’t need another framework. They needed someone who could observe their work, understand it, and help structure it coherently.
Yet every popular framework presumes foundational knowledge that most practitioners don’t possess. Lean assumes you understand flow. Six Sigma assumes you can identify and measure variation. ISO assumes you know how to document actual practice, not aspirational procedure.
Without these fundamentals, companies default to hiring consultants who create documentation, facilitate audits, and help them obtain certificates. The underlying operations remain unchanged. The certificate hangs on the wall.
I could have continued playing that role. It’s more profitable and less challenging than actual transformation.
But I realized that doing so would make me complicit in a fundamentally broken system.
The Architecture Beneath Modern Methods
When I returned to my Industrial Engineering textbooks, the architecture became clear.
Scientific Management, the systematic study of work pioneered by Taylor, Gilbreth, and their contemporaries, isn’t obsolete. It’s foundational, every contemporary methodology descends from these principles:
Observe scientifically. Understand what work actually consists of, not what procedures claim it should be.
Analyze systematically. Apply rigorous methods to identify inefficiency, variation, and waste.
Improve practically. Design better methods based on evidence, not assumption.
Lean manufacturing, Six Sigma, and the Toyota Production System are all branches of this tree. But the industry stopped teaching the trunk. We teach applications without teaching principles, we certify practitioners in tools without ensuring they understand the fundamental logic those tools express.
Why the System Perpetuates Itself
The current model serves multiple interests, which explains its persistence.
For companies: Real operational improvement is difficult and slow. Certification is fast and creates the appearance of competence. It’s economically rational to prioritize the signal over the substance.
For consultants: Helping companies pass audits is more scalable than teaching fundamentals. Creating documentation is faster than developing capability. The incentive structure rewards breadth of certifications over depth of transformation.
For the frameworks themselves: They market themselves as innovations rather than applications of century-old principles. This positioning justifies premium pricing and creates differentiation in a crowded market.
The result: a self-reinforcing cycle where companies seek certificates, consultants provide them, and the underlying operational capability remains undeveloped.
A Different Approach
My practice is shifting in several ways:
Leading with fundamentals, not frameworks. Before discussing Lean or Six Sigma, I start with basic work measurement, process analysis, and method design.
Diagnosing before prescribing. Rather than applying a standard methodology, I observe what’s actually happening and let that observation inform the intervention.
Building capability, not documentation. The goal is to develop the client’s ability to analyze and improve their own operations, not to create impressive binders.
Declining certification theater. I’m no longer interested in helping companies obtain credentials without operational change.
This approach is harder to sell and takes longer to execute. It’s less immediately profitable. But it’s the only way to create actual value rather than just the appearance of it.
The Broader Implication
The manufacturing operations field has a credibility problem. We’ve created an elaborate superstructure of frameworks, certifications, and branded methodologies that often disconnects from fundamental capability.
When practitioners don’t understand basic work measurement, they can’t meaningfully apply Lean. When they don’t grasp statistical thinking, Six Sigma becomes a ritualistic exercise. When they don’t know how to document actual practice, ISO becomes pure theater.
The solution isn’t more sophisticated frameworks. It’s a return to first principles. Teaching people to observe work scientifically, analyze it systematically, and improve it practically.
Sometimes moving forward requires going back to where we started.
Looking Ahead
I’m documenting this transition publicly for two reasons.
First, I suspect I’m not alone in having pursued certifications while sensing something was missing. If that resonates, I’d welcome the conversation.
Second, I believe the consulting industry needs more practitioners willing to build depth rather than chase credentials, even when that’s the harder path economically.
The fundamentals of Industrial Engineering aren’t outdated. They’re the foundation every operational improvement methodology rests on.
It’s time we remembered that.
The author is an operations consultant working primarily with medium-sized manufacturers (50-1000 employees). He can be reached at [contact info].