“Teresa will train her.”

That was the solution when one of our partners wanted to hire Connie. She had solid secretarial experience, but no law firm experience—normally a requirement at our AmLaw firm—and our HR manager was reluctant to hire her. I was a junior associate at the time. The partner insisted, Connie was hired, and the responsibility of teaching her how to be a legal secretary fell to me.

What began as an assignment became a 20-year professional relationship that was far more than a traditional attorney–legal secretary relationship. Connie’s happiness and success mattered to me, and I believe mine mattered to her. Together, we handled closings, deadlines, and countless documents, but the lasting lesson was not about the work itself. It was about what can happen when one person takes the time to invest in another.

Training Connie was never simply a matter of telling her what to do. She needed to understand why we were doing it—how a document fit into the larger deal, why a particular detail mattered, and how her work affected the people depending on us.

From the beginning, Connie brought her own commitment to the process. She asked great questions, wanted to learn, and was genuinely interested in understanding the work rather than simply completing the assignment.

That approach took more time in the beginning. It required explanation, patience, and trust. But it produced something much more valuable than a person who could follow instructions: a professional who could think, anticipate, grow, and take real ownership of her work.

Most professionals eventually find themselves responsible for helping someone else grow—whether they are supervising a team, mentoring a younger colleague, or simply sharing knowledge gained through experience. The question is whether we treat that responsibility as another task to complete or as an opportunity to invest in someone’s career.

The Difference Between Training and Investing

There is a difference between training someone to complete a task and investing in someone’s development and career. Training answers the immediate question: What needs to be done? Investment goes further: Why does it matter? What should you notice next time? How can you use this experience to make a better decision on your own?

In busy workplaces, it is easy to skip those additional questions. We tell ourselves that there is no time to explain. We give the assignment, correct the result, and move on to the next demand. That may feel efficient in the moment, but it can keep capable people dependent on instructions they are fully able to outgrow.

When leaders explain the “why,” they give people context. Context builds judgment. Judgment builds confidence. And confidence gives people the ability to contribute at a higher level.

If you want people to grow, do not give them only the answer. Help them understand how you reached it.

Growth Requires Room

Investing in people also means allowing them to become more than they were when the relationship began. That sounds obvious, but it is not always easy. Growth changes the dynamics. The person you once had to guide closely may begin to anticipate your needs, offer a different perspective, or handle responsibilities in ways you might not have chosen yourself.

Good leadership makes room for that growth. It does not insist that someone remain permanently in the role of the learner. It recognizes progress, delegates with intention, and gives people opportunities to show what they can do.

Over time, Connie’s growth became part of the strength of our working relationship. The more she understood, the more she could see. The more she could see, the more effectively we could work together. That is what happens when development is treated as part of the work rather than something separate from it.

Loyalty Is Built Over Time

A 20-year professional relationship is not created by one grand gesture. It is built through years of ordinary choices: taking time to teach, answering questions without making someone feel small, trusting a person with meaningful responsibility, acknowledging improvement, and showing that their contribution matters.

Loyalty is often discussed as though it is something an employee either has or does not have. I think leaders should ask a different question: What kind of environment are we creating for loyalty to grow?

People remember whether they were treated as replaceable or as someone worth developing. They remember whether a mistake became an opportunity to learn or a reason to withdraw trust. They remember whether a leader shared knowledge freely or guarded it as a form of control.

When people know that you are invested in their success—not only in what they can do for you today—the relationship changes. Work becomes more collaborative. Trust becomes deeper. And both people are able to accomplish more than either could through instructions alone.

What Leadership Looks Like Over Time

Leadership is often described through titles, authority, or major decisions. But much of leadership happens in smaller moments. It happens when we decide whether to explain or dismiss, encourage or criticize, delegate or control, advocate or remain silent.

Those moments accumulate. They shape careers. They also shape the kind of leader we become.

My years with Connie reinforced a lesson I have carried throughout my career: investing in people is never separate from producing excellent work. It is one of the ways excellent work becomes possible—consistently, thoughtfully, and over time.

That kind of investment is a two-way commitment. Even the best leader cannot teach someone who is not committed to understanding, just as even the most eager learner cannot grow without guidance, opportunity, and trust. Connie brought curiosity, effort, and a genuine desire to learn. My responsibility was to recognize those qualities and give her room to develop them.

If you lead a team, supervise a colleague, mentor a younger professional, or simply have knowledge someone else is trying to gain, consider where you may be able to invest more intentionally. Explain the reason behind the assignment. Share the judgment that experience has taught you. Give responsibility with support. Notice growth and say so.

You may not know where that investment will lead. You may not know how long the relationship will last. But you will have helped someone become more capable and confident—and you may discover that you have built a stronger, more loyal, and more meaningful professional relationship in the process.

The work matters. The people doing the work matter, too.

Twenty years later, I am still grateful that Connie came into my professional life. What began as an assignment to train a new legal secretary became a remarkable relationship—one built through trust, growth, loyalty, and years of working toward something together. Connie’s story continues to remind me that investing in people is not separate from leadership. It is leadership.