For decades, the 9-box grid has been the cornerstone of the leadership development and talent management strategy in many organisations.

Originally developed by McKinsey & Company for General Electric in the 1970s, its visual simplicity – a 3×3 matrix mapping an individual’s current performance against their future potential – made it an irresistible tool for HR departments worldwide. However, as the workplace becomes increasingly diverse and the demands on leaders more complex, it is becoming clear that this traditional approach often oversimplifies human behaviour and leads to flawed, biased decisions.

While the 9-box grid remains a sound starting point, organisations must look beyond its rigid structure to understand what truly drives leadership capability development. Relying on a once-a-year categorisation exercise is no longer sufficient in an era that demands agility and a genuine commitment to inclusion.

What the 9-Box Grid Gets Right

The enduring popularity of the 9-box grid is not without merit. It provides a simple, shared visual ‘portfolio’ of an organisation’s talent, allowing leaders to see distributions of performance and potential at a glance. By providing an agreed framework and a common language, it can make talent conversations more structured and less ad-hoc.

When implemented well, it encourages the necessary differentiation between leadership potential vs performance and informs important decisions about finite development budgets. It forces managers to recognise that an individual who is a “star” in their current role may not necessarily have the capacity or the desire to succeed at the next level of seniority. When used correctly, as a structured conversation aid rather than a mechanistic rating device, it can highlight succession gaps and prompt targeted investment in high potential employees (HiPos).

Where the 9-Box Grid Falls Short

Despite its visual appeal, there are several limitations of the 9-box grid. Its strength is also a weakness: it provides a simple tool that allows busy managers to have more structured conversations about talent, but at the same time attempts to distil the vast complexity of an individual’s skills, motivations, and psychological traits into two simple axes.

Potential is Poorly Defined

One of the most persistent issues is that “potential” is frequently a poorly defined and subjective construct. While performance can often be grounded in objective data like KPIs and results, potential is often based on a manager’s intuition or proxies like “confidence” and “visibility”. This lack of clear, behaviourally defined criteria often leads managers to default to “leadership prototypes” – mental models of what a leader “looks like”. Research shows these prototypes often favour white, male, able-bodied, and straight archetypes, meaning that anyone who does not fit this mould is viewed with greater scrutiny or scepticism. Consequently, the grid often serves to maintain the status quo rather than identifying diverse, untapped talent.

The Danger of Labelling and Bias

The 9-box grid literally appears to ‘box people in’. Once an employee is labelled as ‘low potential’, it can trigger a “horn effect” where managers disproportionately focus on their failures while ignoring their successes. These labels often create self-fulfilling prophecies: “high potential” individuals are granted more resources, positive attention, and “stretch” assignments, while “low potential” individuals are sidelined, leading to decreased engagement and a further decline in performance. We literally get what we expect.

It Ignores Context and Development

Standardised grids often ignore role-specific demands and environmental factors. An individual deemed “high potential” in a stable environment might fail in one that is highly disruptive or politically complex. Furthermore, many organisations spend far more time on the categorisation of talent than they do on the actual development of it. The 9-box grid produces static snapshots that quickly become outdated, encouraging a “fixed mindset” where talent is viewed as an innate quality rather than a developable skill.

What Really Matters When Developing Leaders?

To build a robust leadership pipeline, organisations must move from ‘placing talent’ to ‘growing leaders’. This requires focusing on the deep-seated psychological and relational factors that the 9-box grid misses.

Self-Awareness and Reflective Capacity

True leadership begins with self-awareness. Effective leaders possess the reflective capacity to understand their own strengths, weaknesses, and the impact their behaviour has on others. Tools such as 360-degree feedback are vital here, provided they are managed to mitigate the gender and racial biases that frequently infect subjective reviews.

Learning Agility and Adaptability

In an era of permanent ‘white water’ change, learning agility – the capacity to grow and perform in unfamiliar, complex situations – can be a better predictor of success than past performance alone. Leaders must be able to filter new information, initiate change, and remain agile in the face of disruptive technology like AI.

Motivation to Lead

Not everyone wants to be a leader, and assuming that every high performer aspires to management is a common strategic error. A leader’s drive and intrinsic motivation are essential; they must find value and a sense of self-worth in the act of developing others and leading a team.

Interpersonal and Emotional Skills

The ability to influence others, develop trust, demonstrate empathy, and build diverse professional networks is critical. When leaders demonstrate these skills, they fuel intrinsic motivation and a sense of self-belief in their teams, which are critical for maintaining high engagement and productivity. Leaders who have built strong relationships and fostered trust in others are able to draw on this ‘social capital’ and a network of supportive colleagues when they experience challenges and setbacks.

The Role of Psychology in Leadership Development

A psychological leadership assessment approach provides the deep insights necessary to move beyond superficial labels. By employing evidence-based leadership assessment tools, such as psychometrics and development centres, organisations can gather richer data on a candidate’s underlying traits.

Understanding ‘Derailers’ and Risks

Effective development requires ‘stress-testing’ HiPos to understand their behavioural tendencies under pressure. Identifying potential ‘derailers’, such as a tendency toward aggression when challenged or a lack of resilience in the face of failure, allows for proactive coaching before these traits damage a career or a team.

Individualised Development Approaches

Leadership development is not a one-size-fits-all process. Tailored coaching and feedback are essential to help individuals navigate specific internal blockers, such as ‘imposter syndrome’, which is often experienced by new leaders, especially those from underrepresented groups who have internalised societal biases.

A Better Way to Use the 9-Box Grid

The 9-box grid should not be discarded, but its role must be redefined. It should be treated as a conversation starter – a tool to prompt deeper inquiry – rather than a final decision-making device.

1. Integrate continuous feedback: move away from static annual snapshots. Placements should be refreshed regularly based on real-time performance metrics and continuous calibration sessions.
2. Use multiple data sources: do not rely solely on a single manager’s opinion, which is often influenced by unconscious bias or vested interests. Incorporate 360-degree feedback, skills assessments, and objective psychometric data.
3. Separate development from pay: talent discussions should, where possible, be separated from remuneration decisions to encourage more honest, developmental conversations.
4. Adopt a ‘developable’ philosophy: shift the organisational mindset from ‘finding’ talent to ‘growing’ it. An inclusive-developable philosophy assumes that with the right support, everyone has the potential to expand their contribution.

Conclusion

The visual simplicity of the 9-box grid will likely ensure its continued place in HR toolkits. However, human potential is far too complex to be defined by a single dot on a matrix. By acknowledging the limitations of the 9-box grid and shifting toward more nuanced, psychologically informed approaches, organisations can stop simply categorising their people and start genuinely cultivating their next generation of leaders.

The future of leadership belongs to those who dare to create systems that are fair, inclusive, and truly reflective of the diverse talent available in our society.