Insight
Why capable teams struggle to decide together, and what changes it. Every claim here is sourced.
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The information is already in the room
Teams discuss what everyone already knows and skip what only one person knows. It is one of the most replicated findings in decision research, and it explains why more data rarely helps.
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Friction is not personality, it is process
Disagreement about the work and friction between people are different things, and meta-analysis finds only one of them reliably damages performance. Which one you have determines what to do about it.
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How the decision was made matters more than how well it was analysed
Across 1,048 major business decisions, process explained considerably more of the outcome than analytical rigour did. That is an uncomfortable finding for anyone who has just commissioned another model.