Pre-Mortem Analysis
Imagine the decision has already failed, then work backward to identify what went wrong.
When to Use
Use a pre-mortem before committing to any major decision. Unlike risk analysis (which asks 'what could go wrong?'), a pre-mortem says 'it already failed, so tell me why.' This psychological reframe dramatically increases people's willingness to voice concerns. Research by Gary Klein shows pre-mortems improve prediction accuracy by 30%.
Steps
- 1
Announce the failure
Tell the group: 'It's one year from now. We made this decision and it was a disaster. What happened?'
- 2
Individual brainstorm
Each person writes down 2-3 reasons the decision failed. No discussion yet; independent thinking prevents anchoring.
- 3
Share and cluster
Go around the room. Share all failure scenarios. Group similar ones together into themes.
- 4
Prioritize risks
Vote on which failure modes are most likely and most damaging. Focus on the top 3-5.
- 5
Mitigate or pivot
For each top risk, either add a mitigation plan to the decision or reconsider the decision entirely.
Real-World Example
Before launching a new pricing tier, a SaaS company ran a pre-mortem. The exercise surfaced that enterprise customers might view the new tier as a downgrade of their current plan, a concern no one had raised in three months of planning. The team added a grandfathering clause and a proactive communication campaign, avoiding what could have been significant churn.
Pros
- Psychologically safe way to raise concerns
- 30% improvement in risk identification (Klein research)
- Quick to run: 60-90 minutes max
- Works as a complement to any other framework
Cons
- Can create excessive pessimism if not balanced
- Doesn't help generate alternatives, only evaluates the current plan
- Requires honest participation to be effective
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