Dissent, debate and questioning

There's a myth that persists in some organisations - that a calm, willing, nodding workforce is a sign of a vibrant culture. In my experience, it’s the opposite. It's a sign that people have learned it isn't worth the bother to challenge and that the rot is setting in.

Amy Edmondson's foundational research on psychological safety established that teams who speak up, challenge, debate and ask uncomfortable questions consistently outperform those who don't.

Her 1999 Harvard study found that surgical teams who reported more errors weren't worse at their jobs - they were simply safer environments in which to admit them.

Charlan Nemeth's research at UC Berkeley goes further: dissenting voices, even when wrong, improve the quality of everyone else's thinking and the outputs they produce.
The absence of challenge isn't consensus. It's a form of compliance. And compliance, dressed up as a pleasant culture, is how organisations drift quietly toward stagnation. If nobody's dissenting, debating or questioning, that's not a sign of respect. It's a warning.