Key-person risk in growth: when one star drives your numbers
In 1984, Napoli paid a world-record fee for Diego Maradona. Then it waited 33 years to win the league without him.
The season before he arrived, Napoli was fighting relegation. No club from southern Italy had ever won Serie A. With him, Napoli won it twice, in 1987 and 1990. His last game for the club came in 1991. The next title came in 2023.
Naples painted him on every wall. Nobody painted a plan B.
A win that lives in one person leaves when they do.
Founders build growth this way all the time
One star media buyer who knows every account by heart. One creator driving half the installs. One founder writing every hook.
It works beautifully, right up until that person quits, burns out, or gets banned by a platform. Then the numbers drop, and nobody can explain why, because the reasons were never written down.
The fractional CMO trap
Fractional CMOs get hired to be the Maradona. The better job is building the Napoli that does not need one.
A senior person who makes every call personally creates the same risk as a star media buyer. The work only counts if the wins can live in the team after the engagement ends.
How to check where your growth lives
- Ask the question directly: if one person left tomorrow, would next month's numbers fall by half?
- List what that person does every week. Which decisions, which accounts, which creative calls?
- Write the decision rules down. How do they decide what to scale, what to pause, what to test next? See writing the pause rule before launch.
- Put a second person on each critical task for at least part of the week.
- Spread the creator and channel mix so no single creator, account or platform carries most of the result.
Bottom line
Sign the star. Build the team. Keep the trophies.
Sources: SSC Napoli, Diego Maradona.
FAQ
What is key-person risk in marketing?
It is the risk that results depend on one individual, such as a media buyer, a creator or a founder. If that person leaves or loses access to a platform, performance can drop sharply.
How do I reduce dependence on one media buyer?
Document how they make decisions, give a second person shared ownership of key accounts, and turn their judgment calls into written rules the team can follow.
Is it risky to rely on one creator for growth?
Yes, if one creator drives a large share of your users. A change in their audience, their platform or your relationship can remove that share at once. Build a wider creator mix over time.
What should a fractional CMO leave behind?
A team and a set of written decision rules that keep working without them: clear ownership, documented processes and people who can make the calls on their own.