Worked example · TW-2026-11-11.1
Insufficient evidence
Insufficient evidence · Fictional case · Proposed interpretation
Executive summary
The answers do not establish a cause. Gather more evidence before choosing an intervention.
Reported evidence and route
Performance gap — Fictional dispatch team at Meridian Works. Expected: At least 98 of every 100 orders pass the first quality check. Observed: In the last sample, 91 of 100 orders passed the first check. Evidence: The fictional dispatch log records nine rework orders in a sample of 100.
Impact — Significant impact
Expectations — The standard is clear
Working conditions — Tools, time and support are adequate
Consequences — Rewards support the intended behaviour
Skill and knowledge — Competence still needs checking
Remaining obstacles — Further investigation is needed
Manager’s observation or concern — No observed demonstration is available.
What remains uncertain
Observe the task before drawing a conclusion about competence.
Further investigation is needed before confirming the remaining factors.
Suggested management actions
Review the evidence with the team and observe the task before selecting a remedy.
Manager’s decision
Example choice: verify the possible cause with the team before committing resources.
Conclusion
Insufficient evidence. Review the proposed findings with the people who do the work.