Reading the Exit Signals: 5 Data-Driven Warning Signs Leaders Can Miss

Employee turnover is no longer a people issue; it’s a balance-sheet problem. Gallup estimates that disengagement alone costs the global economy $8.8 trillion a year, and much of that loss shows up when high performers quietly walk out the door. At the company level, replacing a single employee routinely costs between one-half and double their annual salary once lost productivity, recruiting, and ramp-up time are factored in.

And yet most organizations still treat resignations like lightning strikes—sudden, unpredictable, unavoidable. Here’s the reality: almost no one leaves suddenly. They leave gradually, first in attention, then effort, then presence. Disengagement is a process, not an unforeseeable event.

In a workplace now mediated by digital systems, that process leaves a trail. How people collaborate, where they spend their time, what they stop doing—all of it is visible in patterns of behavior.

Here are five early warning signs that someone may already be halfway out the door and why leaders ignore them at their own risk.

1. Persistent Underperformance

A sustained dip in productivity is one of the clearest signals of disengagement. This is not about a bad week or a missed deadline. The real warning sign is a consistent downward slope: fewer meetings, fewer deliverables, less participation in core workflows, and a gradual retreat from responsibility.

That erosion has real consequences. In 2024, disengagement cost the global economy an estimated $438 billion in lost productivity, as engagement fell to just 21%.

When someone’s contribution steadily erodes, it’s rarely a coincidence. More often, it’s a sign their commitment has already been reallocated elsewhere.

2. Sudden Spikes in Overperformance

Counterintuitively, a sudden surge in activity can be just as concerning as a slowdown, and is often a telltale sign of burnout.

McKinsey research shows that employees experiencing burnout are six times more likely to say they plan to leave their jobs within the next three to six months.

Not every sprint is a red flag. But unexplained intensity, especially when it appears out of nowhere or alongside other behavior changes, usually is.

What looks like dedication can be a warning sign. This intensity can mask extreme stress or impending burnout, signaling that an employee may be racing to tie up loose ends before an exit or barely holding on under an unsustainable workload.

Catch more HRTech Insights: HRTech Interview with Sandra Moran, Chief Marketing Officer of Schoox

3. Digital Isolation

As work has moved online, disengagement has become easier to spot and isolation easier to hide. A drop in activity across shared docs, project tools, or messaging channels often signals more than a decreased workload; it signals withdrawal. When someone stops showing up where work actually happens, they’re not just drifting from the work, they’re often drifting into digital isolation.

In fact, digital distance can quietly become emotional distance. Gallup research shows that about one-quarter of fully remote employees report significant feelings of loneliness, compared with roughly 16 percent of fully on-site workers. Disconnection usually shows up in behavior before it shows up in a resignation letter.

4. Erratic Work Habits

Flexibility is now a given but consistency still matters. Sudden shifts in when or how someone works (frequent late-night logins, disappearing during core hours, or bursts of activity at unusual times) often point to rising stress, disengagement, or both.

The U.S. Surgeon General’s workplace well-being report links irregular and unpredictable work patterns to higher stress, work–life conflict, and mental health strain. Over time, that erratic behavior is associated with lower performance and higher attrition risk.

5. Abandoning Core Tools

Every role has a set of essential systems – CRMs, project trackers, design platforms – that define how value gets created.

When utilization of those systems declines, priorities almost always shift. A marketing leader who stops logging campaigns or participating in performance reviews isn’t just busy. They’re disengaging from outcomes. And in many cases, they’re already mentally preparing for what comes next.

When people stop using the tools that define their jobs, it’s rarely a neutral act and often  a behavioral signal.

From Reactive to Proactive: Rethinking Retention

Behavioral change is not invisible, it is measurable and often reversible if leaders respond early enough and thoughtfully. This does not require invasive monitoring, t requires disciplined attention to patterns, not individuals and the organizational maturity to treat early warning signs as invitations to intervene, not reasons to punish.

The stakes remain high. According to the U.S. Bureau of Labor Statistics, quit rates remain above pre-pandemic levels, even as job openings decline. Talent is still mobile and it is still at risk.

What Leaders Should Do Now

Moving from damage control to real retention requires more than good intentions, it requires better systems. Establish a clear baseline for what “normal” looks like so meaningful deviations stand out early. Agree on which combinations of signals trigger a conversation, instead of waiting for performance to crater or a resignation to hit your inbox. Train managers to respond to early warning signs with curiosity and support, not punishment.

Turnover will always exist. Surprise resignations don’t have to. With the right visibility and the right infrastructure, companies can intervene sooner and stop quietly losing their best people.