Why Some People Keep Getting Better (And You Can Too)

I was in a client meeting recently watching two C-suite candidates get discussed. On paper, Candidate A was perfect: ticked every box, had done the exact role before at a similar company. Candidate B had less direct experience and some clear gaps.

The board chose Candidate B. Why?

The answer isn't what most people expect. It's not because Candidate B was more charismatic, more intelligent, had a better resume, had networked harder or had a more polished LinkedIn profile. It's about something really great executives look for but rarely name directly: growth capacity.

If you're already at a senior level, chances are you've been building growth capacity intuitively: taking on roles that stretched you, seeking complexity, learning from failure. You probably recognised early on that staying in your comfort zone was career death. This is what Candidate B demonstrated to the board in the above example. Candidate A was perfect for the "right now", but Candidate B was much more suited to the complexity and unknown challenges that are the reality of the world we live in right now.

But here's what most leaders don't realise: they're doing this accidentally, not systematically. And the difference matters enormously. When you understand what you're building and how it compounds, you can accelerate your development by years instead of decades.

Growth capacity is the hidden currency of executive hiring. Understanding it systematically is what separates leaders who plateau from those who keep ascending.

What Savvy Leaders Actually Hire For

Here's what most people miss: the very best executives don't just hire for today's job. They hire for tomorrow's unknown.

You probably already know this at some level. You've likely felt it in your own career. That moment when you realised the skills that got you promoted wouldn't be enough to succeed in the new role. That discomfort when you took on something you'd never done before and had to figure it out in real time.

That's growth capacity in action.

Let me give you the precise definition: Growth capacity is a leader's demonstrated and latent ability to take on roles of greater scale, complexity, and ambiguity over time. It's not about performing well in the job as it exists today. Its about whether you'll grow with the role or become the constraint when it inevitably expands, breaks, or changes.

Think of it this way: someone can be highly competent today and still have limited growth capacity. They might execute brilliantly in the current scope but struggle when the role doubles in complexity or the market shifts underneath them.

That's the difference great leaders are looking for. And if you've made it to a senior level, you've probably demonstrated this capacity repeatedly, you just might not have had language for it.

Why This Matters More Than You Think

The evidence here is important, so let me be precise about it.

Across labour-market research, executive search data, and board hiring practices, estimates consistently show that around 70 to 80 per cent of executive roles are filled without public advertisement, and that figure increases with seniority. This isn't a single perfect statistic, it's converging evidence from multiple credible sources over decades:

• US Bureau of Labor Statistics-linked research has long shown approximately 70 per cent of roles are filled through networking, referrals, or internal moves

  
  

• LinkedIn Economic Graph data reveals that most senior roles are sourced through direct outreach, referrals, and internal succession

  
  

• Harvard Business Review, MIT Sloan, and Wharton career research regularly cite 60–80 per cent of roles as part of the "hidden job market"

  
  

Executive search firms like Korn Ferry, Spencer Stuart, Russell Reynolds, and Egon Zehnder all confirm the same reality in different language: most C-suite roles never go to open advertisement.

Why can't anyone give you an exact number? Because off-market roles leave no public trace. Many are shaped around individuals. Succession decisions happen before job definitions exist. This is how the market actually works at senior levels.

And here's the kicker: in that hidden market, growth capacity is often the deciding factor.

What Growth Capacity Is Not

Let's clear up some confusion, because growth capacity gets mistaken for other things:

It's not current competence or technical mastery. You can be exceptional at what you do today and still lack the capacity to operate at the next level.

It's not years of experience or career velocity. Plenty of people have moved quickly through roles without developing the adaptive capacity C-Suite leaders are looking for.

It's not potential in the abstract or "high-potential" labels. Those are often subjective judgements without behavioural evidence.

It's not raw intelligence alone. Smart people plateau all the time when they hit their emotional or adaptive limits.

Growth capacity is something more specific and more valuable.

How Growth Capacity Shows Up

In executive hiring, growth capacity is inferred from patterns in how you've worked, not what's on your CV.

If you've been promoted multiple times or recruited for senior roles, you've likely demonstrated many of these patterns without consciously thinking about them:

• How quickly you adapted when roles materially changed

  
  

• Whether you've successfully led through first-time complexity

  
  

• Your ability to shift from doing to orchestrating

  
  

• Evidence of reflective learning after failure or missteps

  
  

• Capacity to integrate feedback without defensiveness

  
  

Hiring managers often choose a candidate who is "less perfect on paper" but more adaptable over time. That's growth capacity in action. And if you're that candidate, if you've ever gotten a role despite not having every qualification, this is probably why.

How to Build Growth Capacity

Here's what the research tells us: growth capacity is built deliberately. It doesn't emerge from experience alone. It comes from how experience is processed, stretched, and integrated.

Many successful leaders have figured this out intuitively. They've developed these practices through trial and error, good mentorship, or raw instinct. But intuitive understanding has limits. It's hard to diagnose where you're strong versus where you're vulnerable. It's difficult to scale these practices across your team. And when you hit a plateau, you don't always know why or what to do about it.

That's where systematic understanding creates an edge.

What follows are seven specific strategies for building growth capacity. You may already be doing some of these. The question is: are you doing them deliberately, or accidentally? And where are the gaps?

1. Increase cognitive range, not just knowledge

Growth capacity expands when you're exposed to new problem types, not more of the same ones. Take on work that forces first-time thinking, not deeper expertise. Rotate between strategic, operational, and people decisions.

Ask yourself regularly: What decisions am I making today that I could not have made two years ago? If the answer is "none," growth has stalled.

2. Practice learning agility under pressure

Learning agility is the strongest predictor of growth capacity in the research. Run short, high-stakes experiments rather than perfect plans. Build the habit of rapid sense-making: what worked, what didn't, why. Compress your feedback loops, don't wait for formal reviews.

Executives who grow fastest are those who learn in motion, not after the fact.

3. Deliberately upgrade emotional capacity

As roles scale, emotional load increases faster than technical load. Train your ability to stay regulated in conflict, ambiguity, and scrutiny. Learn to separate your identity from outcomes. Reduce defensiveness.

Many executives plateau not because they lack intelligence, but because they lack emotional headroom. Feedback tolerance is a growth limiter at senior levels.

4. Shift from doing to orchestrating

Growth capacity requires moving from solving problems yourself to designing systems that solve problems without you. This means letting go of being the smartest person in the room, building leaders who disagree with you well, and measuring success by leverage rather than personal output.

If you're still the bottleneck, your growth capacity is capped.

5. Seek vertical, not just horizontal challenge

Horizontal growth adds scope. Vertical growth adds complexity of thinking.

Build vertical growth by working across conflicting stakeholder agendas, holding multiple truths at once without forcing false certainty, and making decisions where data is incomplete and consequences are asymmetric.

Boards look for this capacity when assessing future readiness.

6. Install reflective discipline

Growth capacity compounds when reflection is systematic. After major decisions, ask: What assumptions did I make? Which were wrong? Track where your thinking had to evolve. Capture lessons in real time, not retrospectively.

Executives who don't reflect repeat mistakes at a higher altitude.

7. Use constraint as a training tool

Artificial constraint accelerates growth: time pressure, resource limits, ambiguous authority, conflicting mandates. Don't avoid these situations, they're how growth capacity is stress-tested and expanded.

Why Growth Capacity Matters in 2026

Here's what most people aren't talking about yet: we're entering a market where technical competence is being commoditised faster than ever before.

AI can write code, analyse data, create presentations, draft strategy documents. Tasks that used to be the domain of highly paid "smart" professionals. Within the next few years, many of the technical skills that executives spent decades building will be largely automated.

So what becomes valuable?

The things AI can't replicate: adaptive thinking under ambiguity, leading through unprecedented change, making judgement calls with incomplete data, building trust across conflicting agendas, and fundamentally, the ability to grow into complexity that doesn't exist yet.

Growth capacity isn't just a nice-to-have anymore. It's becoming the primary differentiator between leaders who remain relevant and those who get displaced.

Think about what's already happening:

• Markets are shifting faster than strategic plans can keep up

  
  

• Business models that worked for decades are being disrupted in months

  
  

• The skills that got you promoted two years ago are increasingly automated

  
  

• The half-life of technical expertise is collapsing

  
  

In this environment, hiring managers aren't asking "Can you do the job as we understand it today?" They're asking "Can you figure out a job that doesn't exist yet when everything we know stops working?"

That's pure growth capacity.

The executives who will win in the next decade aren't the ones with the most impressive technical credentials or the longest tenure in a specific domain. They're the ones who can learn fastest, adapt under pressure, operate in ambiguity, and fundamentally reimagine what their role needs to become.

AI is making competence cheaper. It's making growth capacity exponentially more valuable.

If you're building your career on what you can do today, you're building on sand. If you're building it on your capacity to grow into what's needed tomorrow—you're building on bedrock.

The Bottom Line

Growth capacity is built by repeatedly putting yourself in roles that force you to think, decide, and lead at a level you haven't mastered yet.

If you're reading this, you've probably already done some version of that, which is how you got to where you are. But there's a difference between stumbling into growth opportunities and systematically creating them. Between learning through painful trial and error versus accelerating through intentional practice.

Most leaders build growth capacity intuitively. The ones who build it systematically, who can name what they're doing, diagnose their gaps, and deliberately construct the conditions for their own development, those are the ones who access the hidden market consistently.

The executives who understand this don't just get better at what they do. They fundamentally expand what they're capable of becoming.

That's not just competence. That's systematic capacity building.

And now you have the framework to do it deliberately.

What's one area where you're already building growth capacity intuitively, and how could you make it more systematic? I'd love to hear your thoughts.