Pre-Mortem
Developed by psychologist Gary Klein, the Pre-Mortem asks teams to imagine that a project has already failed — then work backwards to identify what went wrong. By adopting a future failure mindset before starting, teams surface risks, blind spots, and assumptions they would otherwise overlook. It's one of the most effective ways to stress-test a plan.
How to run it
- 1
Present the plan or project to the group.
- 2
Set the scene: 'Imagine it is one year from now. The project has failed — completely. What went wrong?'
- 3
Give participants 5 minutes to silently write as many failure causes as they can think of.
- 4
Each person shares their most important failure scenario.
- 5
Cluster similar failure modes on the board.
- 6
Discuss which risks are most likely or most impactful.
- 7
Identify preventive actions for the top risks and assign owners.
Tips
The failure framing is key — it grants permission to be pessimistic without being seen as a blocker.
Make it clear this is not about blame, it's about smart planning.
The facilitator should actively encourage the darkest scenarios.
Variations
Run a 'Pre-Parade' alongside it: 'Imagine the project succeeded beyond all expectations. What made it work?' This gives you both the risks and the success conditions.
Where it fits
Frequently asked questions
When should I use Pre-Mortem?â–¾
Use Pre-Mortem when you want to: Project kick-offs; Strategy planning; Product launches; Major change initiatives.
How long does Pre-Mortem take?â–¾
Pre-Mortem typically takes 30–60 minutes.
How many participants does Pre-Mortem work for?â–¾
Pre-Mortem works best for groups of 3–20 participants.
What materials do I need for Pre-Mortem?â–¾
To run Pre-Mortem you will need: sticky notes, markers, whiteboard.
How difficult is Pre-Mortem to facilitate?â–¾
Pre-Mortem is rated intermediate — some facilitation experience is helpful.
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