What it corrects
Casual devil’s advocacy rarely survives hierarchy and consensus. A real Red Team has a protected mandate to break the main argument: attack its assumptions, model the strongest opponent, and surface evidence the prevailing frame makes easy to ignore.
The method belongs after an initial recommendation exists. Before that point it can replace original thinking instead of testing it.
How it works
- Lock the current recommendation and its core assumptions.
- Give the challenger a clear perspective and permission to win.
- Attack the causal claim, dependencies, incentives, and downside.
- Hold, revise, or switch — and record what evidence caused the update.
In a Business Case Weekly case
In the SoftBank case, a Red Team should not merely say that a bold capital decision is risky. It should identify the strongest mechanism by which the thesis fails and the evidence that the original argument has underpriced.
In your answer
- “The strongest attack on my recommendation is …”
- “It is dangerous because the case shows …”
- “I still proceed / revise because …”
Common misuse
Do not constrain the challenger to objections the plan already answers. A Red Team that exists to demonstrate resilience is theatre. The test is whether it can expose a reason to change the decision.