If you have run a real Six Sigma project, you already know the tools are rarely the hard part. Trust in Six Sigma projects is. Building a control chart is a mechanical skill. Getting a skeptical process owner to actually change how they work is not.
Most training spends almost no time on this, even though it is often the single biggest reason projects stall.
In this email, I will walk you through why trust matters as much as method, and three practical ways to build it during a project, so you can:
- Get buy-in from people who did not ask for your project
- Avoid the “great analysis, nothing changed” outcome
- Make your recommendations easier to say yes to
Why technically correct is not enough for trust in Six Sigma projects
You can run a flawless root cause analysis and still fail to change anything, because the people who have to live with the change do not trust where it came from. If they were not part of the process, your conclusion looks like an outsider’s opinion, not a shared finding.
This is not a soft skill nice-to-have. It is a direct driver of whether your project’s gains stick after you move on to the next one.
Involve the process owner early, not at the readout
The most common trust mistake is treating the process owner as a stakeholder to inform at the end, instead of a partner in the analysis. If the first time they hear your findings is in a final presentation, you have already lost most of the goodwill you needed.
Bring them into the Measure and Analyze phases directly. Ask them to help interpret the data. Let some of the “aha” moments happen in front of them, not just in front of you.
Show your work, including the dead ends
It is tempting to present only the clean, final version of your analysis. But sharing a few root causes you ruled out, and why, does more for credibility than a polished summary ever will. It signals that you actually investigated, rather than arriving at a predetermined answer.
Make the first change small and reversible
Trust compounds. A small, low-risk pilot change that clearly works builds more credibility than a large, disruptive change that might work. Once a process owner has seen one of your ideas succeed at small scale, they extend more trust to the next, bigger recommendation.
What to do when trust is already broken
Sometimes you inherit a process where trust in Six Sigma projects, or in improvement projects generally, is already damaged from a previous attempt that overpromised and underdelivered. In that situation, do not lead with your methodology. Lead with a small, specific, low-risk commitment you can actually keep, and keep it visibly. Document that first commitment and its result explicitly, even if it is small, since a documented win is what starts to replace the old story people are telling themselves about how these projects go. Rebuilding trust after it has been burned once takes longer than building it from neutral, so budget extra time for this phase rather than assuming your Six Sigma credentials alone will overcome a bad history.
Trust runs upward too, not just toward the process owner
Most advice about trust in Six Sigma projects focuses on the frontline process owner, but sponsors and leadership need it as much, just in a different form. They need to trust that you will surface bad news early, not bury it in a final readout, and that your recommendation is grounded in what the data actually showed, not what you assumed going in. Give leadership brief, honest interim updates during Measure and Analyze, including the parts that are not going well yet, and the final recommendation lands with far more credibility than a surprise readout ever could. This is especially true for sponsors who are new to Six Sigma themselves and are quietly deciding whether the methodology is worth continued investment, not just whether your specific project succeeds.
A quick trust check before you present findings
Before any formal readout, ask yourself one question: has the process owner already seen every major finding I am about to present, in some form, before this meeting? If the honest answer is no, you are about to surprise someone whose buy-in you need, and that is worth fixing before you walk into the room, not after.
Trust in Six Sigma projects is not unique to any one certifying body. Whether you are on the ASQ path or the IASSC path, the project work is where it is actually earned. If you are still deciding which certifying body to pursue, this breakdown can help.
One last practical note: trust in Six Sigma projects is not something you evaluate once at kickoff and then forget about. Check in on it deliberately at each phase gate, not just when something visibly goes wrong, since trust tends to erode quietly, well before a project stalls in a way that is obvious to everyone in the room. A five-minute honest check with yourself, does this person still believe I am on their side, catches problems while they are still cheap to fix.
Your next step
On your current or next project, identify one person whose trust you need most, and find a way to involve them in the analysis this week, not just the readout.
Then hit reply and tell me:
- One project where trust (or the lack of it) changed the outcome, and
- What you would do differently next time.
I read these, and your answers help me decide what to cover next.
Best, Ted.
“Ted works tirelessly to ensure students have the most up to date tools to pass their exams first time. He also has developed a great website to practice questions and is always happy to answer questions.”
Maria C., LinkedIn Recommendation
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