David Ryan Mangum is President of SMT, Inc. He has spent his career running manufacturing plants in North Carolina, from Operations Manager at Pamlico Air to Plant Manager at New Standard Corporation, before stepping into his current role. Outside of work, he has coached youth basketball, soccer, and baseball for 14 years, collects coins, and spends his free time boating, fishing, and hunting with his family. Here, he talks about how he defines success, on the floor and off it.
What Does Success Look Like to You, in Plain Terms?
For me, success is pretty simple. It is a plant that runs well without me standing over every shift, and a team that trusts each other enough to fix problems before they become my problems. Growing up in Rocky Mount, I did not have a traditional path mapped out for me. Some college, then straight into manufacturing. Success for me was never about a title. It was about whether people could count on me, and whether I could count on them.
Has Your Definition of Success Changed Over Your Career?
Yes, quite a bit. Early on, I thought success meant hitting a number: output, efficiency, whatever the metric of the month was. Those numbers still matter. But somewhere along the way, probably once I started managing people instead of just processes, I realized the number is a result, not the goal. The goal is building a team that produces that number on its own. Once I stopped chasing the metric directly and started focusing on the people behind it, the metrics actually got better.
What Role Has Family Played in How You Think About Success?
A big one. I have grandkids now, and that changes how you measure a good year. It is not just what happened at the plant. It is whether I made it to the games, the trips, the ordinary weekends. Boating and fishing with my family are not separate from my idea of success. They are part of it. A career that costs you all your weekends is not a successful career, no matter what the production report says.
You Coached Youth Sports for 14 Years. Did That Change How You See Success at Work?
It did, more than people expect. Coaching basketball, soccer, and baseball for that many years teaches you something about patience that a plant floor cannot. Kids do not improve because you yell the loudest. They improve because you show up consistently, you are honest about what they need to work on, and you trust them to get there. I run my teams at work the same way. Success is not a dramatic turnaround moment. It is showing up the same way, every day, for years.
Where Does Your Coin Collecting Fit Into All This?
It sounds unrelated, but it is not, really. Collecting coins teaches you to pay attention to small details other people miss. A date, a mint mark, a tiny imperfection, that is where the real story of a coin is. I bring that same habit to a plant floor. The line that is almost running well is more interesting to me than the one that is already perfect. Success often hides in details nobody else is looking at closely enough.
How Do You Know When You Are Actually Succeeding, Versus Just Looking Busy?
Looking busy is easy. Actual success is quieter. I know things are going well when people on my team start solving problems on their own, without waiting for me to tell them how. That is the real sign of a team built on trust and accountability instead of just instructions. If I have to be in the room for things to work, that is not success. That is a gap I still need to close.
What Would You Tell Someone Early in Their Career About Success?
Do not wait for the big title to start acting like someone worth trusting. I did not come up with an advanced degree or a clear plan. I came up through plants, learning what works by watching what fails. Success is built slowly, through relationships, shift by shift. The people who try to skip that step usually end up managing a team that does not actually trust them, and that is a much harder job than building the trust in the first place.