Pre-mortem
Imagine your plan has failed a year from now and list why. Rate each reason, then plan for the worst three.
What it is
Imagine it failed, then ask why. Your mentee pictures the plan failed a year from now and lists the reasons.
When to send it
Send it before the plan starts. It helps most while the plan can still change.
- Before a launchwhile there is time to adjust
- Before a big commitmenta hire, a lease, a raise
- When everyone is suremake doubts easy to say
Filling it in
Fifteen minutes, in four steps. Write the plan and the reasons, rate them, then plan for three.
- Write why it failedWrite as if it already happened, one reason per line.
- Rate and place each reasonTop right on the grid means likely and damaging.
- Plan for the top threeSay what you will do and the early warning sign.
Reading the answers
Start in the top-right corner. Risks that are both likely and damaging need a plan before anything else.
- Top riskthe highest likelihood times damage
- High risksa score of 16 or more out of 25
- Early warning signswhat they will watch for
Questions to ask
Ask, then ask once more. People who ask follow-up questions are liked more (Huang and others, 2017).
- Which reason was hardest to write down?then: why that one?
- Which risks are in your hands?then: and which are not?
- Which warning sign will you check first?then: and when?
Why it works
The idea is simple: once failure is treated as a fact, its reasons are easier to say out loud. It is a reflection exercise, not a guarantee.
Sources
How a tool works on Mentornity
- 1The mentor picks a tool from the library and sends it with a short message.
- 2The mentee fills it in step by step; the answers are saved as they go.
- 3Both see the answers, comment on any part and agree the next steps.
- 4Only the two of them see the answers, not the program admins.
Guides for both sides
-
Pre-mortem for MentorsFor mentors and coaches: when to send the Pre-mortem, how to read the risks, which questions to ask and how to agree a warning sign to watch. -
Pre-mortem for MenteesFor mentees and founders: what the Pre-mortem is, how to fill it in, where to find it and what your mentor does with it.
More tools: Venture
- Assumption Map20 min
List what must be true for your idea to work. Rate each assumption, then plan a test for the riskiest one.
- Session Brief10 min
Before the session, write where you are and the one question you want answered. The time goes to that question.
- Experiment Card15 min
Turn one belief into a small test. Set the bar for success before you run it.
- Customer Interviews20 min
Plan your questions, then log each interview. The summary shows how many people really have the problem.
- Pitch Rehearsal20 min
Plan your slides with a time for each, then rehearse against the clock. Each run is kept so you can see the change.
- Unit Economics15 min
Enter four numbers and see what one customer is worth, and how long it takes to earn back what you spent to win them.
- Cash Runway10 min
Enter your cash, costs and growth. See how many months the money lasts and whether revenue catches up in time.
- Monthly Update10 min
Once a month: last month’s goals, one key number, a win, a difficulty, and what you need. Sent every month, it shows the trend.