Source
When this applies
when any team or organization must decide whether to resolve a question by committee agreement or by a single accountable decision-maker
The takeaway
If you want outlier (top-tier) outcomes, you must accept decision-making structures that permit failure, because consensus structurally caps upside even as it raises the floor.
Why it works
Consensus-seeking optimizes for lack of downside (acceptability to everyone), which statistically clusters outcomes in the 6-7 range on a 1-10 scale; leadership allows aiming for and sometimes hitting 9-10, at the cost of also risking lower outcomes.
One level up
Every mechanism that reduces variance in outcomes also reduces the probability of extreme positive outcomes — there is no free lunch between safety and excellence.
Where it stops holding
This stops working when consistent, predictable, above-average quality (not extreme outlier quality) is actually the goal, e.g., in operational manufacturing contexts.
Detail
rule: Consensus decision-making structurally produces mid-range (6-7/10) outcomes; only leadership/fiat can reach 9-10/10 or fail hard trying.
threshold: On a 1-10 scale, consensus caps around 6-7.
rationale: Extreme outliers come from a single vision executed by a team of people, not an agreed-upon vision executed by a team of people.
In their words
The problem with consensus decision is on that spectrum from one to 10, it's usually a six or a seven