There is a pattern so common in management that it rarely gets examined: a task arrives, a capable person handles it well, and so the next task of that type goes to the same person. Repeat this often enough and you have quietly created a situation where your highest performers carry the most weight, your workload distribution is structurally unequal, and the people you most rely on are the ones most likely to leave. This is sometimes called performance punishment — and avoiding it is one of the more important things a manager can learn to do deliberately.
1 Understand why this happens — and why it is so hard to see
The pattern is almost never intentional. When a piece of critical work arrives, a manager naturally reaches for the person they trust to do it well. That is not a failure of judgment — it is a rational response to time pressure and accountability. The problem is that this logic, applied consistently across hundreds of small decisions over months, produces a distribution of work that has nothing to do with fairness, development, or long-term team health.
High performers compound the problem by rarely complaining. Their reliability, their work ethic, and often their sense of professional identity make them reluctant to say the load is unsustainable. Research published in People Management found that work once spread across a team gradually concentrates among a small group of strong performers, on the assumption that they can absorb additional responsibility without further support or recognition. By the time the situation is visible, it is often because someone has already started disengaging or looking elsewhere.
Map your team's actual workload — not the formal job descriptions, but the real distribution of tasks, requests, and responsibility over the past month. You can do this roughly in a spreadsheet or even on paper: list each team member and note the significant pieces of work they have carried. Patterns become visible quickly. If one or two names appear disproportionately, that is not accidental, and it deserves an honest conversation about how to rebalance deliberately.
2 Know the real cost — it is higher than most managers realise
The consequences of overloading high performers are not limited to their individual wellbeing — though that matters. Research on individual performance has consistently shown that the top performers in any organisation account for a disproportionate share of output: one widely cited study found that the top 5% of workers drive 26% of an organisation's total output. When those people leave, the loss is not evenly distributed across the team — it is concentrated where the most critical work happens.
Keystone Partners' 2025 research across more than 1,500 employees found that workers with high performance scores but low resilience are five times more likely to be actively looking for a new job compared to equally high-performing colleagues who have been given space to recover and sustain their effort. The pattern that creates overload also creates the conditions for departure. And according to Gallup, replacing a single employee typically costs between half and twice their annual salary — rising to over 200% of salary for specialist or senior roles when lost institutional knowledge and productivity dip are factored in.
In your next performance or development conversation with a high performer, ask directly: "Is there anything in your current workload that's starting to feel unsustainable?" Then listen to the answer. High performers often downplay this, so follow up with specifics: "If you had to take one thing off your plate this quarter, what would it be?" The answer will tell you something useful. Acting on it — even partially — signals that you see sustainable performance, not just high output, as a shared goal.
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There is a particular version of this pattern that is worth examining separately: the habit of assigning additional responsibility as a form of recognition. A team member delivers something excellent, and the implicit message becomes: here is more. The manager intends it as a signal of trust and confidence. The employee, often, experiences it as being taken for granted.
Research from LeadDev is direct on this point: burnout in high performers is usually not simply a function of working hard — it is driven by work that is out of alignment with their own goals and values. A person can sustain an intense workload if it is moving them toward something they care about. The same volume of work, assigned purely because they can handle it, produces a different experience entirely. The distinction is invisible to a manager who has not had the conversation about what the person actually wants from their work.
When you are about to assign a stretch piece of work to a high performer, pause and ask yourself two questions before doing it. First: is this genuinely developmental for them, or is it simply convenient for me? Second: have I asked them whether this type of work is something they want more of? If the honest answer to the first question is "convenient," or if you have never had the second conversation, it is worth having it before assigning. The few minutes that conversation takes can meaningfully change how the work lands.
4 Audit your workload distribution — and make it visible
Most managers have an intuitive sense that their high performers are busy, but few have a clear picture of just how unequal the distribution actually is. This is partly because workload is invisible — meetings, requests, informal asks, the extra care that goes into complex work — and partly because the people carrying the most rarely flag it.
LSA Global's research on managing high performers is explicit: smart leaders balance challenge with sustainability, pushing high performers strategically rather than relentlessly. That strategic balance requires an accurate view of the current situation, which means making the distribution explicit. This is not about creating bureaucratic systems — it is about the manager having enough visibility to make intentional decisions rather than defaulting to habit.
Once a quarter, spend 20 minutes reviewing how significant work has been distributed across your team. Look at who has been assigned the hardest problems, the most urgent requests, and the cross-team collaboration that tends to fall outside anyone's formal job description. Then ask yourself: if I were to design this distribution deliberately, what would I change? You do not need to act on everything immediately — but having a clear picture of the current reality is the starting point for changing it gradually and intentionally.
5 Develop others to reduce the concentration of reliance
One reason managers keep returning to the same high performers is that the alternative — developing others to take on more — requires an upfront investment of time and risk. Assigning a complex task to someone less proven is slower, requires more oversight, and carries a higher chance of the outcome needing significant correction. In the short term, the path of least resistance is to rely on the people who already deliver reliably.
The long-term cost of that pattern is a team where capability is permanently concentrated, where the development of less experienced members stalls, and where the loss of any single high performer creates a crisis. DDI's 2025 research found that high-potential employees whose intention to leave has grown significantly are nearly four times more likely to stay when their manager regularly provides genuine growth opportunities. Developing others is therefore not just a generosity toward them — it is also the most effective retention strategy for the high performers who are currently carrying the load.
Identify one task that currently flows automatically to your highest performer and deliberately assign the next instance to someone more junior, with appropriate support built in. Brief the junior team member carefully, make clear they can come to you if they get stuck, and set a clear standard for the outcome. Then follow through — be available without micromanaging. The first time will take more of your time than just assigning it to the high performer would have. The second time will take less. By the fifth time, you have meaningfully expanded your team's collective capability and reduced a structural dependency.
6 Recognise the difference between stretch and overload
Not all demanding work is harmful to high performers — in fact, the absence of challenge is one of the fastest ways to lose them. The research distinction that matters here is between stretch and overload. Stretch is work that is demanding in ways that align with a person's goals, develops skills they want to build, and is finite enough that recovery is possible. Overload is work that accumulates beyond what any sustainable pace can absorb, regardless of how capable or committed the person is.
Eagle Hill Consulting's 2025 Workforce Burnout Survey, covering more than 1,400 employees, found that more than half the US workforce is experiencing burnout — and that burned-out employees are nearly three times more likely to say they plan to leave within the year. The survey also found that only 42% of burned-out workers have told their manager about it, and among those who did, 42% said their manager took no action. The message is clear: the manager's ability to distinguish stretch from overload, and to act when the line is crossed, is one of the most consequential things they do for retention.
Create a simple personal rule for your high performers: at least once per quarter, actively reduce their load before adding to it. This might mean removing them from a recurring meeting that is no longer relevant to their work, reassigning a task they have been carrying by default, or simply making it explicit that a coming busy period will be followed by a lighter one. The act of reducing load is not just practical — it sends a signal that you are paying attention to sustainability, not just output. That signal matters as much as the practical relief.
7 Have the career conversation — before someone else does
High performers leave for many reasons, but a common thread in the research is a sense that their current organisation is not the place where they can grow into what they want to become. Fortune reporting on this pattern, drawing on data from Yale School of Management researchers, found that when top performers are unhappy, it has a measurable effect on broader team culture — and that the perception of being taken for granted, rather than genuinely invested in, is a powerful driver of that unhappiness.
The career conversation is not a performance review. It is a genuine, unhurried discussion about where a person wants to go, what would make the next two to three years meaningful for them, and what the manager can do to help make that happen inside the organisation. It is a conversation many managers intend to have and consistently deprioritise. By the time it happens, for many high performers, they have already had a version of it somewhere else.
Schedule a dedicated one-to-one with each of your high performers this quarter — separate from your usual check-in — specifically to talk about their future. Open with something simple: "I want to understand where you want to be in two or three years, and what would make this next year feel like a meaningful step toward that." Then listen more than you speak. The goal is not to have answers ready — it is to understand what they actually want, so that the assignments, conversations, and opportunities you offer in the coming months can connect to that, rather than just to the team's immediate needs.
The bottom line
The tendency to overload high performers is not a character flaw — it is the predictable output of managing under pressure without deliberate systems to counteract it. The managers who avoid it are not necessarily more thoughtful or more caring; they are the ones who have made the distribution of work, the sustainability of effort, and the development of their people into explicit habits rather than occasional intentions. The cost of getting this wrong is high, and largely invisible until someone hands in their notice. The cost of getting it right — clearer workloads, stronger development across the team, better retention — compounds quietly in the other direction.