Turn One Strategic Assumption into a 30-Day Test

Strategic plans often depend on assumptions: customers will value a new service, a shorter process will save time, or a different partnership will improve delivery. The problem is not that leaders make assumptions. The problem is treating an untested belief as if it were already a proven fact.

Before committing a large budget or changing an entire operation, turn one important assumption into a small, responsible test.

Use a five-part strategy test

1. Name the assumption: Write the belief in one sentence: “We believe that…” Be specific about the people, process or result involved.

2. Choose the smallest useful test: Decide what can be tried without launching the full plan. The test should be large enough to produce useful information but limited enough to adjust without major disruption.

3. Define the evidence: Identify what you will observe. This may include completion time, common questions, repeat work, customer responses or staff feedback. Do not choose evidence only after seeing the outcome.

4. Assign an owner and review date: One person should coordinate the test, collect the information and bring it back for review. Set a date—such as 30 days—when the team will make a decision.

5. Decide what happens next: At the review, choose to continue, adjust, stop or run another test. Record why. A test becomes useful only when it leads to a clear decision.

A hypothetical workplace example

Imagine a consulting company believes a shorter onboarding call will help new clients begin work sooner without creating confusion. Instead of changing the process for everyone, the manager runs a 30-day test with the next three new clients.

The team uses a shorter agenda, records which questions remain unanswered and notes whether extra follow-up is needed. One coordinator owns the test. At the end of the month, the team reviews the information and decides whether to keep the shorter call, revise the agenda or return to the original process.

The company has learned something before making a larger change.

Try this today

Choose one strategic belief behind a current plan and complete this sentence:

We believe [assumption]. We will test it by [small action]. We will review [evidence] on [date] and decide whether to continue, adjust or stop.

Share it with the people responsible for the work before the full plan moves forward.

For practical support with strategic planning, implementation and accountable leadership, explore SLNSE strategic consulting and leadership services.