What I've learned
The best evidence sits close to the work, not in a dashboard. Customers repeating themselves. Teams duplicating notes. Leaders asking for updates because they cannot see what is happening. These are signals long before they become a KPI.
Common mistakes
Confusing activity with progress — a new process, a new tool, a new reporting layer, without anyone being clearer about who owns the next step. The second is measuring change only the transformation team can see. If customers and frontline teams can't feel the difference, it hasn't landed yet.
Practical approaches
Make ownership visible before adding anything new. Decide who follows up, who decides, and what happens when an issue drifts. Then measure the change in language people already use: trust, effort, repeat issues, satisfaction, retention, and the speed of useful decisions.