Every leader has one. The team member who always delivers, who never pushes back on a request, who can be relied upon to rescue a project, cover for an absent colleague, or produce exceptional work under impossible deadlines. They are your best employee, and they are almost certainly doing too much. The natural instinct is to route the most important work to the most capable person, and this instinct is rational in the moment but devastating over time. The best employee becomes the single point of failure for every critical deliverable. Their personal development stalls because they are too busy producing to learn. The rest of the team atrophies because they are never given the challenging work that builds capability. And eventually, inevitably, the best employee burns out, leaves, or simply stops being the best because the volume has exceeded even their remarkable capacity. Effective delegation is not just about what the leader should stop doing. It is about ensuring that the leader's delegation pattern does not simply transfer the bottleneck from themselves to their star performer.

Spreading delegation across your entire team, rather than concentrating it on your best performer, develops broader team capability, reduces the risk of single-point-of-failure situations, prevents your top talent from burning out, and creates an organisation that is resilient rather than dependent on any one individual.

How the Best Employee Becomes the Bottleneck

The pattern is predictable. A leader learns to delegate and begins routing work to the team. The first tasks go to the most capable person because the leader wants delegation to succeed, and the best employee is the safest choice. The delegation succeeds, reinforcing the routing decision. The next task goes to the same person, and the next, and the next. Within months, the best employee has become the leader's default delegation target, handling a disproportionate share of the team's critical work while other team members handle only routine tasks.

This concentration creates three problems simultaneously. The first is capacity overload: the best employee's time becomes as constrained as the leader's was before delegation began. The average founder spends 68 per cent of their time on tasks that could be delegated, and when those tasks are all delegated to a single person, that person inherits the overload. The second problem is skill stagnation: the best employee is so busy executing that they have no time for learning, development, or the kind of reflective thinking that maintains their edge. The third problem is team underdevelopment: the remaining team members are implicitly told that they are not trusted with important work, which reduces their engagement, initiative, and motivation to develop.

Teams led by effective delegators are 33 per cent more engaged according to Gallup Q12 analysis, but this engagement benefit accrues only when delegation is distributed broadly. A team where one person does the interesting work and everyone else does the routine work is not an engaged team. It is a frustrated team with one exhausted star performer.

The Single Point of Failure Risk

When your best employee holds the institutional knowledge, client relationships, and operational expertise for every critical process, your business has a single point of failure that would be unacceptable in any other context. No responsible leader would design a technology system with a single server handling all critical functions, yet many design their organisations with precisely this vulnerability. If the best employee falls ill for two weeks, takes a holiday, or, most devastatingly, leaves for a competitor, the business faces a capability gap that cannot be filled quickly because nobody else has been developed to handle the work.

Delegation failures cost mid-market businesses an average of £180,000 per year in duplicated effort, and a significant portion of these failures stem from concentrated delegation that leaves the rest of the team unable to step in when the primary delegatee is unavailable. The 70 Per Cent Rule applies here with particular force: it is better to have three team members who can perform a critical function at 70 per cent of the best employee's standard than to have one team member at 100 per cent and no backup.

The risk extends to client relationships. If the best employee manages all major client accounts because the leader trusts nobody else with client-facing work, every client relationship is dependent on a single person. When that person leaves, the client relationships are at risk of leaving too. CEOs who delegate effectively generate 33 per cent more revenue according to London Business School research, partly because distributed delegation creates multiple client relationship owners rather than a single, irreplaceable point of contact.

The Burnout Trajectory

The best employee's willingness to take on more work is not a sustainable resource. It is a diminishing one. High performers often have a strong desire to contribute, difficulty saying no, and a personal investment in the business's success that makes them vulnerable to chronic overload. They absorb additional tasks because they care, not because they have unlimited capacity. Leaders who delegate report 25 per cent lower burnout rates according to the Journal of Organizational Behavior, but the statistic is about the leader's burnout. The best employee's burnout risk increases with every additional task they absorb from the leader.

The trajectory is gradual enough to be invisible until it reaches a critical point. The best employee works a little later each week. Their enthusiasm dims slightly. They start making small errors they would not have made six months ago. They stop volunteering for new projects and begin completing assigned work mechanically rather than creatively. By the time these symptoms are visible, the burnout is already advanced, and the remediation requires significantly more effort than prevention would have demanded.

Micromanagement reduces employee productivity by 30 to 40 per cent according to HR research, but overloading the best employee produces a similar productivity decline through a different mechanism. Instead of reducing autonomy, overloading reduces capacity: the best employee cannot think deeply about any single task because they have too many tasks competing for their attention. The quality that made them the best performer in the first place erodes under the weight of volume, and the leader's delegation strategy has inadvertently degraded their most valuable resource.

Distributing Delegation Intentionally

The alternative to concentrated delegation is intentional distribution: deliberately spreading delegated work across the team based on each person's development needs and current capability, not just their proven track record. This approach requires more effort from the leader initially, because briefing, supporting, and reviewing the work of a developing team member takes more time than handing it to the reliable star. But the long-term return is transformative: instead of one highly capable person, the leader develops an entire team of increasingly capable people.

The Situational Leadership model provides the framework for distributed delegation. Match the delegation level to the individual's readiness: direct closely for new team members, coach those who are developing, support those who are competent but uncertain, and delegate fully to those who are both capable and confident. The best employee should be receiving Level Four or Level Five delegation on their strongest tasks, while other team members receive Level Two or Level Three delegation on the tasks they are being developed to own. Seventy per cent of delegation failures are due to unclear expectations according to Blanchard Companies, not capability, which means the investment in clear briefing for developing team members is the primary success factor.

Explicitly discuss the distribution strategy with your best employee. They may initially resist having work redistributed because they have built their identity around being indispensable. Frame the redistribution as a development opportunity for them: by offloading execution work, they can focus on higher-level strategic contributions, mentoring responsibilities, and leadership development that prepares them for their own advancement. Only 28 per cent of executives have formal delegation frameworks according to McKinsey, and making delegation distribution explicit through a framework benefits everyone on the team.

Developing the Wider Team Through Stretch Assignments

Stretch assignments, tasks that are slightly beyond a team member's current capability, are the most effective tool for developing broader team capacity. When a task that would normally go to the best employee is instead assigned to a developing team member with appropriate support and oversight, two outcomes result. The developing team member builds new capability through practical experience. And the best employee gains time for higher-value work, mentoring, or personal development.

The quality checkpoint system supports stretch assignments effectively. For a team member taking on a task they have not handled before, define clear checkpoints: review the approach before execution begins, check progress at the midpoint, and review the final output before delivery. These checkpoints provide the safety net that makes stretch assignments possible without unacceptable quality risk. Businesses that implement structured delegation grow 20 to 25 per cent faster than peer companies according to EOS/Traction data, and stretch assignments are the mechanism through which broader team capability develops to support that growth.

Accept that stretch assignments will produce imperfect results initially. The 70 Per Cent Rule is particularly relevant here: if the developing team member produces work at 70 per cent of the best employee's standard, that is not a failure of delegation. It is the expected starting point of a development trajectory that, with feedback and practice, will close the gap. Effective delegation can free up 20 or more hours per week for strategic work according to Harvard Business Review, and this freedom is maximised when delegation is distributed across the team rather than concentrated on a single performer.

Recognising and Rewarding Distribution

The final element of distributed delegation is adjusting your recognition and reward systems to support it. If the best employee is recognised primarily for their volume of output, they have no incentive to relinquish tasks. If other team members are never given the opportunity to deliver high-profile work, they have no opportunity to earn recognition. The leader who delegates intentionally must also recognise intentionally, celebrating the developing team member's growth as well as the best employee's output.

Consider recognising the best employee specifically for their mentoring, knowledge-sharing, and team development contributions. When the star performer helps a colleague succeed on a stretch assignment, that contribution is as valuable as any client deliverable. Leaders who delegate effectively are eight times more likely to report high team performance according to CEB/Gartner, and team performance, by definition, is a collective achievement that depends on broad capability rather than individual heroics.

The financial argument for distribution is compelling. A team where one person generates 80 per cent of the value is a fragile, underdeveloped team that is one resignation away from crisis. A team where five people each generate 20 per cent of the value is resilient, developing, and positioned for growth. The cost of a CEO doing £15-per-hour work is the opportunity cost of the strategic decisions foregone, and the same principle applies to the best employee: the cost of the star performer doing work that developing team members could handle is the opportunity cost of the strategic contribution, mentoring, and leadership development that their time could otherwise produce.