(Why growth, success, and renewal rarely follow a straight line)
“Success is never final.” — Winston Churchill
The concept of the S-curve did not originate from leadership theory. Its mathematical roots go back to the Belgian mathematician Pierre-François Verhulst, who developed the logistic function in the 1830s to describe constrained growth. Later, the S-curve became widely used in innovation and management thinking, especially through Everett Everett Rogers, who popularized the pattern in the diffusion of innovations.
That matters because leadership, too, rarely develops in a straight line.
We like to imagine progress as steady and continuous: learn more, perform better, gain influence, rise further. But real growth is usually uneven. It begins slowly, accelerates, and then levels off. That is the shape of the S-curve, which describes not only products and technologies but also careers, organizations, and leaders.
What the S-Curve Means in Leadership
At the beginning of any new challenge, progress is slow.
A leader entering a new role, a company building a new capability, or a team adopting a new way of working often struggles at first. There is uncertainty, awkwardness, and visible imperfection. Effort is high, but results are modest. Many people become discouraged at this stage because they mistake slow progress for failure.
Then comes the middle of the curve.
This is where learning turns into competence. Confidence grows. The leader finds rhythm. The team becomes more effective. Results begin to compound. Decisions improve, trust deepens, and momentum builds. This is the phase of acceleration, when success becomes visible.
But eventually, the curve begins to flatten.
What once produced rapid gains now delivers smaller returns. Methods become routines. Strengths harden into habits. The leader may still look successful from the outside, but inwardly the process has changed. Learning slows. Curiosity weakens. Performance remains respectable, but renewal begins to fade.
That is the critical moment.
The great mistake is to think the top of one curve is the end of the journey. In leadership, it is usually the beginning of a choice: defend the old curve or start a new one.
The Danger at the Top of the Curve
Most leaders know how to respond to a crisis. Far fewer know how to respond to maturity.
Crisis is noisy. It demands attention. Maturity is quieter. It can feel safe, even flattering. Results may still be good enough to reassure everyone. Yet this is often the point at which decline begins invisibly.
The great risk of leadership is not simply failure. It is attachment to a formula that once worked.
Success can create a dangerous illusion: because something has worked well, we assume it will keep working if we repeat it. But every curve has limits. A strategy that once gave an advantage may later create rigidity. A leadership style that once built order may later stifle initiative. An organization that once thrived on discipline may become too cautious to adapt.
Wise leaders understand that the top of one curve is not the destination. It is a signal.
Why Starting Again Feels So Difficult
Beginning a new S-curve is uncomfortable.
At the start of a new curve, you are no longer operating from mastery. You are learning again. Your confidence may fall before it rises. Others may question why you are changing something that still appears to work. Starting again can feel like regression.
But in leadership, renewal often requires exactly that.
A leader who cannot tolerate being a beginner again will eventually become trapped by earlier success. The courage to start a new curve is one of the clearest signs of maturity. It means choosing long-term vitality over short-term comfort.
In my own career, I have seen that the most enduring leaders are not those who cling longest to one successful formula. They are those who sense, often before others do, that a new context requires a new mindset. They do not abandon their experience, but they refuse to worship it.
The S-Curve of a Career
A career has its own sequence of curves.
At first, the goal is learning. Then it becomes performance. Later, it becomes a reinvention.
Many people remain on a flattening curve longer than they should because they confuse comfort with achievement. But comfort can be deceptive. It may mean that growth has slowed, that the challenge has faded, and that the role no longer stretches judgment or character.
The question every serious leader must ask is not only, “Am I succeeding?” but also, “Am I still growing?”
Sometimes the answer requires a difficult step: a new responsibility, a new sector, a different way of leading, or even a different definition of contribution. Reinvention is not a betrayal of past success. It is often the only way to honor it.
The S-Curve of Organizations
Organizations face the same pattern.
A business model succeeds — a culture forms. Processes become efficient. The company gains confidence from what has worked. But over time, the very strengths that created success can become obstacles to the next stage.
This is why strong companies often struggle to renew themselves. They do not fail because they are weak. They fail because they are too invested in the curve that made them strong.
Leadership means building the next curve before the current one collapses. It means investing in learning before necessity becomes desperation. It means asking difficult questions while the results are still good enough to postpone them.
That takes judgment, humility, and self-discipline.
The Leadership Lesson
The S-curve teaches a simple but demanding lesson: growth is temporary unless renewal is intentional.
Anyone can enjoy the upward sweep of momentum. The deeper test is whether you can recognize when a curve is flattening and respond before the decline becomes obvious. “Can you let go of methods that brought you success? Can you become a learner again? Can you build the next curve while others are still celebrating the current one?”
Leadership is not the art of staying permanently on the rise.
It is the wisdom to know where you are on the curve — and the courage to begin again.
Questions for Reflection
1. Where am I right now on my current leadership S-curve: early learning, rapid growth, or plateau?
2. What signs tell me that I am still growing — or that I may be flattening out?
3. Which habits, routines, or assumptions once helped me succeed but may now be limiting me?
Download the Chairman’s Playbook Worksheet — Play 36: The S-Curve and Leadership
📚Further Reading
1. Smart Growth — Whitney Johnson
Johnson explicitly uses the S Curve of Learning to explain growth, momentum, mastery, and the need to start new curves before stagnation sets in. It connects directly to leadership development, career reinvention, and organizational renewal.
2. Disrupt Yourself — Whitney Johnson
This book is about applying disruptive innovation thinking to yourself and your career—very close to my post’s argument that leaders must leave the comfort of an old curve and begin again.
3. Only the Paranoid Survive — Andrew S. Grove
A strong match for the organizational side of my post. Grove focuses on strategic inflection points — moments when the old curve no longer works and leaders must shift before decline becomes obvious.
4. Transitions — William Bridges
This book fits the emotional side of the S-curve. Bridges explains why endings, uncertainty, and new beginnings are psychologically difficult, which links well with the point that starting a new curve feels like becoming a beginner again.
5. Range — David Epstein
The book supports the idea that growth is not linear, that late development can be powerful, and that reinvention and varied experience often strengthen judgment and leadership.
As an Amazon Associate, I earn from qualifying purchases. This means that if you click on a link in this post and make a purchase, I may receive a small commission at no extra cost to you. Your support helps keep The Chairman’s Playbook going, and I’m grateful for it.
Leave a Reply