When transformation becomes material, evidence is the standard.
Darrin Devereaux has led change where the stakes were real and the scrutiny constant — across 60+ transformation mandates in services organizations from $400M to $20B. He’s brought in at the point a board or PE sponsor has made an operating risk visible and management needs it converted into a governed mandate — credible diagnosis, accountable ownership, funding gates, and measurable value recovery. Time and again, the same question went unanswered: did the operating model actually change, and could anyone prove it?
That question became the work. It produced Zero-Based Transformation and GSDPI — a method built in the field across those mandates and now formalized through his doctoral research in strategic management: a disciplined way to read the operating model, change it, and prove the change held. It is the discipline ETEGY is built on.
The field got very good at launching transformation, and never learned to prove it.
Most firms measure transformation by motion — initiatives launched, milestones hit, adoption reported. The result is a category that can't agree on why most efforts fail, because it has no shared standard for what "changed" or "worked" means.
"If the operating model didn't change, it wasn't transformation — it was expensive activity."
ETEGY was founded to close that gap. We treat the operating model as the subject, read it in its actual state, and hold the change to a standard a board can defend. Not a bigger program. A provable one.
Three commitments that define the firm.
Evidence before opinion
We start from the operating model's actual state — what the system really does, not what the org chart claims. The read comes before the recommendation.
The model is the subject
Not the strategy above it or the tools around it. We change how work converts to value — and if that didn't change, we don't call it transformation.
Proof, not declaration
Every engagement is built to leave a defensible baseline — evidence the change is real and holds, not a slide that says success.