The Empty Chair Test: A Standing Debrief for Teams Working With Advisers

The consultant leaves the room. The flip chart is still up, the actions have been read back, and the chair is empty. For many UK steering groups, that is the point at which the session ends. It is also the point at which the most useful evidence begins to appear.

A short, consultant-free debrief — fifteen minutes, no slides, no minutes in the formal sense — can do something the main workshop rarely does: test whether the advice can survive without the adviser present. The purpose is not to second-guess the consultant or to reopen settled decisions. It is to capture the hesitations, dependencies and ownership gaps that people are less willing to voice while an external expert is in the room.

Why the formal record misses the signal

Minutes are designed to record decisions, attendance and actions. They are not designed to record unease. A manager may agree to a recommendation in principle while privately knowing that the team lacks the capacity to implement it. A department head may accept an action without being clear who will actually do the work. A finance lead may have a question about assumptions that feels too granular for the main session.

These are not trivial matters. They are the raw material of delivery risk. But they rarely appear in the formal record because the formal record captures what was said, not what was withheld. The debrief creates a brief, structured space in which the withheld material can be surfaced while it is still fresh.

The empty chair test

The simplest way to frame the debrief is to imagine the consultant's chair is empty — not for a week, but for the next working day. Ask the group a single question: if the adviser were unavailable tomorrow, what would we be unable to proceed with?

That question shifts the conversation from opinion to evidence. It exposes three things:

• Ownership gaps. Actions that have a name against them but no real owner.
• Adoption risks. Decisions that people accept in the room but do not expect their teams to follow.
• Assumption debts. Recommendations that rely on a condition nobody has tested.

The test is deliberately practical. It does not ask whether people like the advice. It asks whether the organisation can carry it.

A fifteen-minute protocol

The debrief works best when it is short enough to be treated as a routine step rather than a separate event. A simple protocol is enough.

Minutes 0–2: Set the boundary. The facilitator states that the purpose is to surface delivery risks, not to criticise individuals or reopen the commercial relationship. No decisions are taken in the debrief. It is an evidence-gathering step.

Minutes 2–6: Silent capture. Each participant writes down one concern, one dependency and one question they did not raise in the main session. Silent capture matters: it prevents the most senior voice from setting the tone.

Minutes 6–11: Round-robin. Each person reads one item only. The facilitator records it without debate. If an item needs discussion, it goes on the action log rather than being resolved in the room.

Minutes 11–14: Classify. Group the items into three columns: owner needed, evidence needed, decision needed. This keeps the output practical.

Minutes 14–15: Assign and schedule. Give each item a named owner and a review date. The log is then stored with the project papers and reviewed at the start of the next consultancy session.

What to record — and what not to

The log should be a working document, not a transcript. Record the dependency, the risk and the owner. Do not record personal criticism, speculation about the consultant's fees or comments that would be unfair if taken out of context. The debrief is not a confidential grievance channel, and it should not be presented as one.

The facilitator should also be clear about how the log will be shared. In most cases, the log can be shared with the consultant in summary form before the next session. That gives the adviser a chance to address gaps without turning the debrief into a covert critique. If the group wants a private record, that should be agreed in advance and respected.

Making the debrief a habit

The debrief only becomes useful when it is expected. Add it to the standing agenda for every major workshop or steering group, immediately after the consultant leaves. Rotate the facilitator so that the role does not become attached to the most senior person in the room. Review the previous log at the start of the next session, and close items that have been resolved.

For UK organisations commissioning external advice, this is a small governance habit with a disproportionate return. It costs fifteen minutes. It catches the issues that minutes miss. And it tests, while there is still time to act, whether the advice can stand without the adviser in the room.