Gary Klein Premortem Risk Analysis

Spot project flaws before launch with Gary Klein premortem risk analysis. The team assumes failure in advance to uncover hidden flaws and refine project milestones.

6 time blocks, 55 minutes in total.

Time blocks

Project Plan Briefing: 5 min
Review goals, scope, and key milestones with the team
Failure State Visualization: 5 min
Assume the project has failed completely six months from now
Silent Risk Generation: 10 min
Write down every reason why the project might have failed
Round-Robin Risk Collection: 15 min
Share one risk per turn until all ideas are on the board
Risk Prioritization: 10 min
Group repeating patterns and highlight high impact threats
Mitigation Action Plan: 10 min
Assign owners and adjust project milestones to counter risks

About this routine

Psychologist Gary Klein developed the premortem method to overcome overconfidence in project planning. Instead of asking what might go wrong, a Gary Klein premortem routine asks team members to pretend the project has already failed catastrophically. This simple shift in perspective breaks groupthink and makes it psychologically safe for team members to voice doubts.

The process begins by setting a realistic timeline, such as six months or one year after launch. The leader announces that the project was a total disaster. Every participant then spends ten minutes in quiet concentration, writing down every possible cause for the bad outcome.

By collecting these insights in a round robin format, the team creates a comprehensive list of vulnerabilities. The final phase turns these insights into preventive action. Teams update their project milestones, assign clear risk owners, and address major flaws before committing resources.

Why this routine works

Breaks groupthink by making prospective criticism mandatory and safe
Uncovers hidden assumptions and technical flaws before launch
Improves milestone accuracy and establishes clear risk ownership

FAQ

What is a Gary Klein premortem?

A premortem is a decision making exercise developed by cognitive psychologist Gary Klein. The team assumes a project has failed before it starts, working backward to uncover flaws.

How long does a project premortem take?

A standard team premortem takes about 55 minutes, covering problem visualization, silent writing, risk collection, and mitigation planning.

Why is a premortem better than a traditional risk review?

Traditional risk reviews ask if something might fail, which encourages optimism bias. A premortem assumes failure has occurred, triggering prospective hindsight to reveal real vulnerabilities.

Sources

Performing a Project Premortem, Harvard Business Review (Gary Klein)
Streetlights and Shadows: Searching for the Keys to Adaptive Decision Making, Gary Klein