Bryan:
There’s a contradiction at the heart of most businesses. Founders are often capable, driven, and exceptionally good at what they do—good enough, in fact, to build something that works. But somewhere between early success and sustainable growth, that same instinct becomes the constraint.
For Graham Mitchell, Founder of Grow Business Coaching and author of Compounding Advantage, the answer to consistent growth isn’t more ideas, more energy, or more ambition. It’s about choosing the few goals that matter right now, committing to them with discipline, and executing so well that small gains compound into outsized results over time.
Bryan Welker and Stefan le Roux sat down with Graham to unpack what actually drives sustainable growth—moving beyond the mythology of scale and into the demanding work of leadership, focus, and disciplined execution.
The Good Business Journal: What was your upbringing like, and how did your early years shape your interest in business?
I grew up east of Johannesburg, in Springs. It was a very happy primary school experience—riding bikes to school, to friends’ houses, a lot of freedom. Then I went to boarding school in Johannesburg, which was a big adjustment initially, but I really enjoyed it.
What stood out to me whilst boarding was the camaraderie. You grow up with your mates, and those friendships tend to last. But it was also where something started to develop for me—I enjoyed helping people.
I was quite strong academically, and other guys would come to me with maths problems or things they were struggling with. I really enjoyed teaching and helping them understand.
That continued into university. I studied accountancy because I was always interested in business—how it works, how it makes money. I can remember being about eight years old and being unhappy with the interest rate on my bank account. I made my mother take me to the bank so I could open one with a better rate. I did get a better rate, eventually.
So that interest in business and helping people was there quite early, and it carried through everything I did afterwards.
Bryan: You started your career in accountancy and corporate finance. At what point did you realise that wasn’t the long-term path?
After university, I did my articles at KPMG and then spent time in London on secondment. That was a great experience. I worked in corporate finance, doing mergers and acquisitions, and also spent time in training—developing courses and facilitating them globally.
I really enjoyed the training side. Running courses, helping people build skills—it was something I naturally gravitated towards.
After that, I joined a smaller business doing similar work, and we got involved in some interesting projects, particularly in Africa. One was a large-scale housing development in Zambia, where we were trying to solve the issue of title deeds so people could actually own property and build wealth. We also worked on a project in Abuja, Nigeria.
Those experiences were valuable, but I realised that the mergers and acquisitions space wasn’t what I wanted to do for the rest of my life. I started reflecting on what I actually enjoyed, and two things stood out clearly: I liked helping people, and I liked business.
That’s when I came across the concept of business coaching. I’d never heard of it before, but it immediately resonated.
Stefan: How did that transition into building Grow Business Coaching?
I started in 2009 by buying into a business coaching franchise. It was a good way to get going, build a client base, and learn the craft.
After about four years, I bought myself out. I had a slightly different perspective on how I wanted to approach things, and that’s when I started Grow in 2013. That’s what I’ve been building ever since.
Bryan: And how long has your book, Compounding Interest, been in the making?
It’s been an evolving process over many years of working with clients—observing what works, what doesn’t, and what actually gets results consistently.
I’ve had a coach myself, and he’d been encouraging me to write a book for about 15 years. Eventually, about two years ago, it felt like the right time. We had refined our approach enough as a business that we could clearly articulate the principles that were working.
So the book is really a distillation of that—what we’ve seen across many businesses that actually leads to sustained success.
Stefan: One of the core ideas in the book is the role of leadership in growth. Where do most business owners go wrong?
When an entrepreneur starts a business, they usually have to be very good at something. They create the product, they sell it, they build relationships—they drive everything.
In that early stage, the business is dependent on their ability to get things done. That’s what makes it successful.
But then the business grows, and suddenly you have a team. The leadership style that worked in the early stage is no longer what’s needed for the next stage.
The shift that’s required is often difficult. One of the biggest challenges is the leader’s ability to recognise that they may be the constraint.
What we often see is that when things aren’t working, leaders look outward—they blame the team, they think they need better people, or they wonder why others don’t operate the way they do. But the real unlock often comes from looking inward.
Sometimes it’s just one or two small changes in how they lead that can completely change the trajectory of the business.
Bryan: That level of self-reflection can be uncomfortable!
Yes, and it’s critical.
I often tell the story of a client who had built a very successful business but was very controlling. She was frustrated with her team and felt they weren’t performing.
We did a staff survey, and the feedback on her leadership was quite negative. Around the same time, she was interviewing a candidate who told her he was hesitant to join because she had a reputation for being difficult to work with.
She came into a coaching session and asked, “Am I really the tyrant?”
She already knew the answer. She recognised that she wasn’t delegating, wasn’t allowing people to step up.
Once she made that shift, everything changed. Today, she has a strong leadership team, and the business has grown far beyond what I would have expected.
It wasn’t a complete overhaul—it was a simple realisation and a willingness to change.
Stefan: The principle of “compounding advantage” is central to your work. What does that actually look like inside a business?
What we’ve seen with businesses that achieve strong results is that they follow a very disciplined, almost methodical approach to growth.
They are clear on where they want to go, but more importantly, they identify one or two priorities that will have the biggest impact on moving the business forward right now—not in theory, but in the context they’re operating in.
Then they execute those priorities exceptionally well. That means setting clear outcomes, aligning the team, tracking progress consistently, and staying with it long enough for the change to take hold.
After that, they move on to the next one or two priorities and repeat the process. There’s a cadence to it—often quarterly—where the business is deliberately improving the few things that matter most, rather than reacting to everything that comes up.
Most businesses can list 50 things they want to improve. The critical question is: which one or two actually matter most right now? Which ones, if we get them right, will unlock the next level of performance?
That’s where the leverage sits. It might be improving sales conversion, tightening cash flow management, strengthening a key leadership role, or fixing a broken operational process. The specifics differ, but the principle is the same.
If you consistently improve the right things, quarter after quarter, those improvements compound. Each step builds on the previous one, capability increases, confidence grows, and over time, the results become significant.
It’s not dramatic. It doesn’t feel like a breakthrough in the moment. But over a few years, the gap between businesses that follow this approach and those that don’t becomes very clear.
Stefan: Why is that so difficult for entrepreneurs to stick to?
There are two main challenges.
The first is what we call the “whirlwind.” Day-to-day operations are all-consuming. Entrepreneurs are very good at serving customers—that’s how they built the business—but it leaves little time to step back and improve the business itself.
The second is saying no.
Entrepreneurs are naturally inclined to do many things at once. They move quickly, they chase opportunities. But that often results in doing a lot of things poorly or not finishing them at all.
Compounding advantage requires discipline. It means choosing fewer things and doing them exceptionally well.
That’s not always easy.
Bryan: Human beings often sign up for personal training programs but fall off the wagon within a few weeks. Is there a similar pattern in the business coaching space?
It’s a very apt analogy. Gyms are very busy in January after people make their New Year’s resolutions, but they often quieten down by April.
We see a similar pattern. The idea of improving the business is appealing to founders, but after a few months, the reality sets in, and they realise that they actually have to do the work.
The first three months are the most critical, and if they stick with it and build the discipline, they start to see results.
Within about a year, it becomes clear whether the leader is willing to make the necessary changes.
Stefan: Given the South African context—uncertainty, volatility, and high SME failure rates—what gives you confidence in the local business environment?
South African businesses are actually very good at dealing with uncertainty. They’ve had to be.
What they don’t always have, though, is long-term, strategic thinking. Businesses often operate reactively, dealing with what’s in front of them, and that is what our strategy aims to address.
But the potential in the country is significant. We’ve seen periods where the economy has grown strongly, and that potential still exists.
South Africans are resilient. They solve problems, they make things happen. There’s a strong base of talent and a large, growing market.
When the broader environment improves—and I think we’re starting to see early signs of that—the upside is considerable.
Bryan:
What emerges from Graham Mitchell’s perspective isn’t a rejection of ambition, but a reframing of it. Growth isn’t found in doing more—it’s found in doing the right things, consistently, over time.
In a business culture that often rewards urgency and activity, his work points in a different direction: toward discipline, restraint, and the compounding power of getting better, one decision at a time.
