The hidden profile problem: why teams don't share their most important knowledge

And that turned out well: it emerged that one or two people at the table had had the right instinct from the start — they knew a certain approach would not work. They had simply said nothing.

The nasty part about hidden profiles

In a decision situation, all the information distributed across the group should really be on the table. That is often exactly what does not happen. Stasser and Titus showed this clearly back in 1985: groups tend to discuss shared knowledge — what everyone already knows — more thoroughly than what only one person knows. Not out of bad intent. It is simply easier to talk about something everyone can confirm.

The result: the best solution often sits in the distributed information — and still does not get found. This does not happen because the team is bad. It happens even in teams that get along well and have little conflict.

When harmony becomes a risk

On top of this comes a second, separate mechanism that often kicks in even before the actual discussion: groupthink. A leader sets the norm, defines the boundaries. Who wants to be seen as the outlier? Sometimes because of past experience. Sometimes because they have learned they are not heard anyway. Because hierarchy or volume dominates. Because there is mistrust.

Toma and Butera showed in 2009 that people withhold or share knowledge strategically — depending on whether they expect an advantage or a disadvantage from it. Withholding, then, is not chance or shyness. It is often a rational reaction to what is treated as safe or risky in the room.

The annoying part: there are situations where all information genuinely needs to be on the table, or the group ends up with the preferred decision instead of the best one.

Two things that help

Neither is complicated. Both require consistency.

a) A structure that makes distributed knowledge visible

For example, a rotating "devil's advocate" role — someone explicitly tasked with seeking out the counter-position. Or a fixed follow-up meeting after an important decision, where the group revisits it: did we miss something decisive? This is also, incidentally, why outside advice often helps at this point — it is easier from the outside to raise the uncomfortable point.

b) A culture that removes the pressure

One where people feel safe. Where sharing knowledge is actively encouraged — even when it contradicts the majority view.

What this means for Swiss SMEs

In smaller organisations, management, leadership and the team often sit in the same room — a structural advantage. It takes no major initiative to introduce a follow-up meeting or assign a devil's advocate role.

The downside is the same as the advantage: short distances also mean short paths for groupthink. If the boss has a clear opinion, the road to silence is shorter than in a large, more anonymous corporation.

These are exactly the kinds of systems I try to build: structures that make distributed knowledge visible, and a culture that makes it safe to share. It is not simple — but it is doable.

References

Stasser, G., & Titus, W. (1985). Pooling of unshared information in group decision making: Biased information sampling during discussion. Journal of Personality and Social Psychology, 48(6), 1467–1478.

Toma, C., & Butera, F. (2009). Hidden profiles and concealed information: Strategic information sharing and use in group decision making. Personality and Social Psychology Bulletin, 35(6), 793–806.