Direct answer
A principle is the non-negotiable reason a decision exists; a route is the current way you are trying to reach it. When a plan stops working, keep the principle visible, test whether the route still fits, then change the route without quietly changing the promise.
How to use it
- Write the principle as a sentence: “We must still…”
- Write the route as a current choice: “We are currently doing this by…”
- Name the evidence that the route no longer works.
- List two alternative routes that preserve the principle.
- Choose the route with the least unnecessary disruption.
Example
A studio promised clients a transparent launch process. The old route was weekly calls. When calendars broke, the principle stayed: transparency. The route changed to a shared launch tracker, async reviews and fewer, sharper checkpoint calls.
Caveats and limits
If the principle is vague, the distinction collapses. “Grow the brand” is not a principle. “Protect buyer trust while changing the offer” is closer.