The best leadership lessons learned don’t come from books or seminars. They come from the moments that embarrassed you, humbled you, or stopped you cold in the middle of what you were doing and made you think differently.
Twenty-plus years ago I started as a 14-year-old grocery bagger at Hannaford in Scotia, NY. A few weeks in, I was goofing off with a cashier while a customer’s groceries piled up at the end of the belt. My front end manager, Bill Chauvin, switched me out mid-customer, pulled me aside, and said: “Pete, when you come to work — come to work.”
That stuck. It still does. And it set the pattern for how I’ve collected the leadership lessons learned that have shaped everything since. Here are the five that matter most.
1. All You Have Is Your Integrity
Early in my retail management career at Hollywood Video, my district manager was Aimee Proctor — one of the most organized, clear-eyed leaders I’ve ever worked with. And I lied to her. Not dramatically. Just the small, career-killing kind: telling her I’d completed a store activity when I hadn’t, saying I’d tried a sales approach when I hadn’t touched it.
I thought I was managing perception. Aimee was building a case.
She took me to lunch, was smooth and direct, and told me my career would be short-lived if I couldn’t tell my boss the truth. Then she said something I’ve never forgotten: “All you have in this world is your integrity. Once you lose it, you will never get it back.”
She was right. Trust, once broken, doesn’t fully rebuild. It leaves a scar on every interaction that follows. Of all the leadership lessons learned in my career, this one came first — and it’s still the most important. Your reputation is built slowly and lost fast. Protect it like it’s the only thing you have, because in leadership, it is.
2. The Secret Is in the Dirt
When I was managing a PetSmart store in Alpharetta, we were selected for a company-wide test on real-time replenishment. A consulting firm came in to run it. During one of our daily meetings, a team member shared an opinion about the fastest product to stock. The consultant stopped the conversation and said: “The secret is in the dirt.”
He explained it like this: farmers know their crops better than anyone because they have their hands in the soil. The closer you are to the actual work, the more you know about what’s really happening.
This is one of the most practical leadership lessons learned I’ve ever picked up. As leaders, we make decisions every day that affect the people doing the actual work — without asking them. They see things we can’t. They know what’s breaking before it breaks. They have ideas we’d never think of from the top.
Before you make a decision that affects your frontline, ask the people closest to the problem. They know things you don’t. That’s not a weakness in your leadership — it’s an asset if you’re humble enough to use it.
3. Interview When You Need People the Least
This one is operational, but it applies everywhere. The easiest time to forget about hiring is when you feel fully staffed. And that’s exactly when you should be doing it.
The reality is you’re one bad week away from being critically understaffed. People leave. Life happens. And if you haven’t been building a pipeline, you’re hiring from desperation — which means you’re hiring wrong.
In Build Kickass Teams, I write about how smart leaders don’t wait for a role to open before they start looking. They keep relationships warm. They stay connected to talented people before they need them. Because when the moment comes, you want to be selecting — not scrambling.
My practical recommendation: put two hours on your calendar every week dedicated to recruiting. Review applications. Reach out to candidates. Run phone screens. Even when you don’t have an open role. It’s one of the highest-leverage leadership lessons learned I can pass on to any hiring manager.
4. If It’s Their Bat and Ball, It’s Their Rules
Pete Schneider was my District Manager at PetSmart for nearly a decade. No-nonsense, cut through the noise, told you exactly what he thought. I respected that immensely.
Early in my time working with him, I got excited about ways I could improve our scheduling system — approaches I was convinced would deliver better customer service at lower labor cost than what corporate had designed. Pete listened, pushed back, and after a long conversation landed on something that reframed how I thought about my role: “If it’s their bat and ball, you play by their rules.”
My job as a Store Manager wasn’t to reinterpret the company’s vision and execute my version of it. It was to execute their vision — faithfully, and with full effort. Challenge where appropriate. Give feedback. But ultimately, run the play.
I’ve carried this one into coaching ever since. There’s a time to push back and a time to execute. Knowing the difference is one of the most important leadership lessons learned for anyone who works within a system they didn’t design.
5. Work for a Person, Not a Company
I’ve changed a lot of colored shirts over the years — retail companies are remarkably similar when you strip away the branding. What made the difference, every single time, was the direct manager.
I’ve stayed at companies longer than made sense because of a great boss. I’ve left companies earlier than I planned because of a bad one. The job is secondary. The person you work for is what determines whether you grow, stay stagnant, or quietly check out.
Here’s the harder edge of this leadership lesson learned: if your people are leaving, in most cases — not all, but most — you’re the reason. Not the company, not the pay, not the commute. You. That’s uncomfortable to sit with, but it’s true enough to be worth sitting with.
The fix isn’t complicated. It comes down to the small moments: how you respond when someone needs time off, how you show up when someone loses a family member, whether you actually know what matters to the people on your team. Those fractional moments build a case in your team’s minds over time — either for you or against you.
The golden rule still holds in leadership. Treat your people the way you’d want to be treated if the roles were reversed. It sounds simple because it is. The hard part is doing it consistently, especially when you’re under pressure.
You Never Stop Learning
Every leadership lesson learned in my career came from someone who was generous enough to tell me the truth — even when it was uncomfortable. Bill at the grocery store. Aimee over lunch. A consultant in a task force meeting. Pete Schneider on a store visit.
The leaders who stop learning are the ones who think they’ve already arrived. The ones who keep growing are the ones who stay curious, stay humble, and keep paying attention to what the people around them are actually saying.
If you want to keep building on these lessons, read how to shift from working in the business to actually leading it — or book a free fit call with Pete and let’s talk about where you are in your leadership journey.