Boards fear staff turnover. They track the retention rate, count recruitment costs and analyse exit interviews. That’s understandable – an employee leaving is an event that can be measured, reported and put on a slide for the board. The problem is that the most expensive departures are the ones that don’t appear in any report, because formally they never happened. The person still comes to work. Still delivers results. Is still on the payroll. But mentally, they are already gone. This phenomenon has a name – quiet quitting – and it is far more costly than classic turnover, because it is invisible in standard management metrics.
Why don’t dashboards see it?
In most organisations, performance appraisal systems measure output: achievement of goals, timeliness, the quality of what is delivered. That makes sense – output is easy to measure and compare. The problem is that quiet quitting attacks not output but input – engagement, initiative, willingness to make an effort beyond the formal scope of duties. And no standard dashboard records that, because there is no column for it. The result: for six months, a year, sometimes longer, an employee can deliver results at an unchanged level while mentally already being “outside”. Formally – no problem at all. In reality – the organisation is losing the most valuable resource it had: a person who not long ago wanted to do more than they had to.
What disappears first – behavioural signals
When we work with data from assessment centres and development interviews, this phenomenon becomes visible earlier than in the numbers. Before output drops, things that no KPI measures disappear:
1. Initiative. “Maybe we could do this differently” stops appearing. The employee does the task exactly as instructed – not a bit more.
2. Deeper engagement with the subject. Staying in the conversation for one more question, asking about context, being interested in “why” and not just “what” – all of this disappears.
3. Visibility in discussions. Someone who used to speak up in meetings starts to withdraw. They don’t object – they simply stop taking part.
4. Flexibility. The willingness to take on an extra task “because it needs doing” disappears. A precise adherence to the boundaries of the role appears instead.
None of these signals is alarming on its own. Each can be explained away: “they’re having a bad week”, “they’re tired”, “they’ve had a lot of personal stuff going on lately”. The problem arises when the signals form a lasting pattern rather than a temporary dip.
The paradox of the best employees
Quiet quitting is hardest to detect in the people who used to give the most. That is no coincidence – it is a logical consequence of how the point of reference works in assessment. A very good employee’s “bad day” still looks better than an average day of someone who has always done exactly as much as necessary. The manager compares the result with the team average, not with the earlier version of this particular person. As a result, a drop in engagement among the best people is mathematically masked: even reduced, it still exceeds the point of reference. This creates a dangerous mechanism: the better the employee, the longer it takes the organisation to notice that it is losing them.
The moment of truth – the resignation
In practice, managers only realise when the resignation letter lands. Then the question arises: “But they delivered everything – what happened?” That question is wrong. Nothing happened suddenly. The process had been going on – usually for several months, sometimes for more than half a year. It’s just that throughout that time the organisation monitored the result, not the person. The measure was set to the right level on the last day, not to the trajectory by which that level was reached. This distinction – result versus trajectory – is crucial for anyone responsible for team retention.
What you can do about it – three levels of intervention
1. Change the point of reference in assessment
Instead of comparing an employee only with the team average, it is worth tracking their own trajectory over time. The question is not “are they delivering enough”, but “are they delivering less than six months ago, even though the formal result hasn’t changed”.
2. Conversations focused on initiative, not tasks
A standard 1:1 asks about the status of projects. It is worth adding different questions: when did they last propose something nobody asked for? When did they last disagree with something? Having no answer to these questions is an earlier signal than a drop in KPIs.
3. Systematic diagnostics instead of the manager’s intuition
Relying solely on the direct manager’s gut feeling is risky – especially since it is precisely among the best people that the signals are weakest and easiest to rationalise. Diagnostic tools (behavioural assessment, regular engagement surveys at the individual level, not just at team level) make it possible to catch the pattern before it becomes irreversible.
A question worth asking yourself
Not “how many people left this quarter”, but: how will I recognise that someone in my team is still working but has already left mentally? If the answer is “I’ll find out when I get their resignation”, that’s a sign that the organisation’s appraisal system measures results, not people. And that the most dangerous turnover – the invisible kind – is happening right now in the background.