Three Culture Thinkers, One Hard Question: Why Don't People Speak Up?

A leadership team reviews a failing project. Ten people in the room. Zero questions. Afterward, four of them tell someone 'I saw that coming months ago.' This is one of the most common culture problems in organizations, and three of the most-cited thinkers on culture would diagnose it differently.

Schein: ask what the silence is protecting

Edgar Schein treated culture as learned shared assumptions — the unspoken rules about what keeps you safe. His diagnosis would start upstream of the meeting: what have people in this organization learned happens to those who raise inconvenient truths? Silence isn't cowardice; it's a rational adaptation to the local rules. To find them, he'd look at the last three times someone spoke up. What happened next — promotion, sidetrack, or slow exclusion — is the real policy.

Edmondson: measure psychological safety as a shared property

Amy Edmondson's research reframes the problem: people don't withhold because they doubt their own judgment of the rules — they withhold because speaking up carries interpersonal risk, and that risk varies by team, not just by company. Her prescription is structural: leaders must explicitly frame work as learning under uncertainty ('we don't know if this plan will work — that's why we need what you're seeing'), model fallibility, and respond to bad news with inquiry rather than judgment. The tell in our failing-project meeting: the leader's first reaction to the last person who raised a risk.

Lencioni: silence is the absence of trust-based conflict

Patrick Lencioni would say the meeting isn't failing at communication — it's failing at conflict. Teams without a foundation of vulnerability-based trust skip the productive disagreement stage entirely and go straight to polite artificial harmony, then re-litigate the decision in hallways. His fix is not more channels for input; it's leaders going first: admitting their own doubts and mistakes publicly, then mining for conflict by asking the quietest person in the room to disagree directly.

One intervention that uses all three

For the next recurring meeting, try this four-part sequence for six weeks:

1. 1Before: the leader opens by naming one thing they're uncertain about or got wrong since the last meeting. (Edmondson's modeling.)
2. 2During: one agenda item is designated 'disagreement required.' The leader asks each person for one way this could fail. The norm: no one may pass a second time. (Lencioni's mined conflict.)
3. 3After: the leader writes down who raised what, and — this is the part most leaders skip — follows up within a week on at least one raised concern, visibly. (Schein's learned rules: this is how people learn the new rule.)
4. 4Monthly: review what was raised and what changed. If nothing changed for two months, people will stop raising things — correctly.

None of the three thinkers would accept 'we told people to speak up' as an intervention. Speech is an output. The work is redesigning what happens after someone does.