Multipliers: How Leaders Amplify the Intelligence Around Them

The five disciplines that let leaders amplify rather than diminish the people around them

What is a Multiplier leader and how do you become one?

Liz Wiseman’s research found that the best leaders — Multipliers — extract far more capability from their people than average leaders do, not by being smarter, but by creating conditions where others’ intelligence can fully operate. Diminishers, the opposite, may be brilliant and well-intentioned but systematically suppress the thinking around them. The research is interview-based across multiple organizations — observational, not experimental — but the mechanisms align with well-established research on autonomy, self-efficacy, and psychological safety.

Wiseman’s central finding is that the most effective leaders are not the smartest person in the room — they are the ones who make everyone around them smarter. Multipliers ask questions instead of asserting answers, give stretch challenges instead of just-manageable tasks, and create debate rather than issuing pronouncements. Their counterparts — Diminishers — are often high performers who have simply never learned that their brilliance can crowd out everyone else’s. Below are the five Multiplier disciplines with the mechanisms behind them.