Coaching practices for How to Stress Test a Plan

Describe almost anything you are working through and IX Coach finds the practices whose real-world fit is closest. For How to Stress Test a Plan, these are the strongest matches in the current practice library.

Does this sound like the set of challenges you might be facing?

• My whole plan quietly rests on a handful of things I’ve just taken for granted
• I’m all-in on this plan and can barely make myself imagine it going wrong
• My plan looks fine on the average projection, but I have no idea what happens to me if I’d retired into one of those brutal decades
• We ran a real critique of the plan, found genuine holes, wrote them all down in a nice risk list
• My plan feels solid until I notice it quietly depends on a whole stack of things just going my way

Practices that may help

1. Map and stress-test your key assumptions
   Before executing, list the assumptions the plan depends on — then ask which ones would kill it if wrong.
   Red Teaming: Stress-Testing Plans Before They Fail
2. Run a pre-mortem from the outside-view perspective
   Imagine the project has failed — then ask which base-rate failure type caused it.
   The Outside View
3. Stress-test your withdrawal plan against multiple scenarios
   Run your plan against the worst historical periods — not just the average — before retiring.
   The 4 Percent Rule, Made Practical
4. Require the plan to change, not just the risk register
   A red team exercise that doesn’t change the plan has accomplished nothing.
   Red Teaming: Stress-Testing Plans Before They Fail
5. Name the assumptions that must hold for the plan to work
   Every plan rests on assumptions — list them and ask how likely each one is.
   Margin of Safety
6. Run the basic pre-mortem
   Assume the plan failed, then have everyone write down why.
   The Pre-Mortem: Imagine It Already Failed
7. Design decisions so they work even if some things go wrong
   Ask: does this plan require everything to go right? If so, redesign it.
   Margin of Safety
8. Run a pre-mortem before committing to a plan
   Imagine the plan has already failed and ask what went wrong.
   Confirmation Bias: Seeing What You Expect to See
9. Steelman objections to your own plans
   Before committing to a plan, state the strongest case against it in its most compelling form.
   Steelmanning
10. Use reverse brainstorming to find failure modes
    Ask "how would we make this fail?" instead of "how do we make this succeed?"
    Red Teaming: Stress-Testing Plans Before They Fail

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