Borrow the spirit of the classic Shell approach without heavy bureaucracy. Draft two to three contrasting futures defined by critical uncertainties, then stress-test your strategy against each. The goal is not certainty, but robustness and graceful failure when assumptions age faster than meetings admit.
Translate uncertainties into tractable signposts: numeric thresholds, customer behaviors, supply constraints, or policy drafts moving through committees. Define green, yellow, and red bands with agreed responses. When reality nudges a dial, teams already know who convenes, what is paused, and what accelerates immediately.
Create a living assumptions log with owner names, review cadence, and attached experiments. When someone learns something new, the log changes, not a slide nobody reopens. This simple ritual preserves humility, speeds learning, and keeps strategy tied to evidence, not stubborn optimism.