For much of our professional lives, success is remarkably easy to recognize.
We know what it looks like. A promotion. A leadership role. A new credential. A larger salary. A publication. More responsibility. A reputation for being good at what we do.
We learn to pursue these markers early, often before we have had the opportunity to decide whether they actually represent the life or career we want.
And because achievement is visible, measurable, and socially reinforced, it becomes easy to confuse progress with alignment.
A career can be objectively successful and increasingly unsustainable at the same time.
The problem is not necessarily that we have chosen the wrong goals. It may be that we have never stopped to examine the assumptions underneath them.
The Success Script We Inherit
Most professionals do not consciously sit down and write a definition of success. We inherit one.
Work hard. Perform well. Become knowledgeable. Take on more responsibility. Advance. Lead. Stay relevant. Keep going.
For many of us, this script has served us well. It has given us direction, opened doors, and created opportunities that might not otherwise have existed. There is value in ambition, discipline, expertise, and achievement. I would not argue otherwise.
But a script can be useful without being permanent.
The expectations that shape our early careers may make sense at one stage and become increasingly disconnected from our lives at another. The responsibilities we carry change. Our financial priorities change. Our interests change. Our energy changes. The organizations around us change. Sometimes the very reasons we entered a profession change.
Yet we often continue measuring ourselves against the same definition of success.
We can become exceptionally good at succeeding within a system that no longer fits.
Achievement is Not the Same as Sustainability
Career conversations often frame sustainability primarily as the prevention of burnout. That is an important part of the conversation, but it is not the whole conversation.
Sustainability asks a different question: not simply whether we can keep doing something, but whether the way we are building our careers continues to make sense as our lives evolve.
That question introduces dimensions that traditional measures of career success tend to overlook.
A sustainable career has to account for more than professional accomplishment. It has to coexist with financial realities, personal priorities, behavioral patterns, relationships, identity, and the capacity to adapt when circumstances change. It has to leave room for possibility.
This does not mean that every career decision needs to be optimized around comfort or convenience. Meaningful work often requires challenge, sacrifice, uncertainty, and periods of intense effort.
The point is not to eliminate those things. It is to recognize that they are choices, not definitions of success.
A career that requires us to continually override everything else that matters may be highly accomplished, but that does not necessarily make it sustainable.
What are We Actually Trying to Sustain?
We spend enormous amounts of time asking what we should achieve next. We spend considerably less time asking what we want our careers to sustain over time.
Perhaps it is financial security. Perhaps it is intellectual growth or the opportunity to keep learning. Perhaps it is meaningful contribution. Perhaps it is flexibility, autonomy, or the ability to be present for the people and responsibilities outside of work. Perhaps it is the freedom to change direction when the circumstances of our lives change.
For most people, the answer is not one thing. It is a combination of dimensions that shift in importance over time. That is why a career that felt deeply aligned five years ago may feel different today without either version being wrong.
The career did not necessarily fail. Our definition of success evolved.
And that is something we need to become more comfortable acknowledging.
ReScripting is Not Starting Over
There is a tendency to think that changing direction requires rejecting what came before.
I see it differently.
ReScripting is not about erasing the previous version of your career. It is about examining what we want to carry forward into the next version.
The expertise you developed still matters. The relationships you built still matter. The leadership experiences, accomplishments, lessons, and even difficult seasons still matter. They become part of the foundation from which the next version is built.
What changes is the meaning we assign to them.
Perhaps advancement remains important, but it no longer needs to be the primary measure of progress. Perhaps leadership remains part of your future, but the form of leadership changes. Perhaps expertise remains central to your identity, while the way you use that expertise evolves. Perhaps success becomes less about accumulating credentials and more about creating options.
None of these shifts require us to become less ambitious. They require us to become more intentional about what we want our ambition to make possible.
A Broader Definition of Career Sustainability
This is why I think career sustainability deserves a place alongside more familiar conversations about career development and professional success.
Career sustainability is not a prescription for doing less. It is not an argument against ambition. It is not a formula for finding the perfect job.
It is a way of thinking about whether the career we are building can continue to support the person we are becoming. That requires us to examine what is working, what is strained, what is changing, and where we have options.
It also requires us to recognize that sustainability is not static. What sustains us at one point in our careers may not be what sustains us later.
The goal, then, is not to find a permanent definition of success. It is to develop the awareness and flexibility to revisit that definition when it no longer serves us.
Perhaps Success Needs a New Question
I have spent much of my career working in environments where achievement, accountability, assessment, and improvement are central to the work. Those experiences have shaped how I think about professional growth.
We are accustomed to asking whether something is working.
We should also ask whether it is sustainable.
And perhaps, before deciding what comes next, we should ask a more fundamental question: What are we actually building?
That question sits at the heart of the Career Sustainability Framework. The framework offers one way to examine the different dimensions that influence whether a career continues to fit the person living it. But the larger idea is less about a framework than it is about a habit of examination.
Because sometimes the next step in a career is not another achievement, another title, or another credential. Sometimes it is taking a closer look at the script that brought you here and deciding, with intention, what deserves to come with you.
That may be the more meaningful definition of success.
Not success as a destination. Success as something we are willing to revisit, reshape, and ReScript as we evolve.