You think your network is big enough to fill the role. Fifteen, twenty, maybe thirty years in the trade. You know people. You have always known people, and people have always come through.

I am not going to tell you your network is weak. I am going to tell you it is finite, and the number is smaller than you feel it to be. That gap between how big your circle feels and how big it actually is, is where most bad hires are born. The quality of a hire is set long before a résumé lands. It is set by what the leader can see, and a leader can only see as far as his own reach extends. The mirror question here is not "who do I know?" It is "what am I unable to see, and what am I doing about it?"

The number is 150, and you are already at it

Robin Dunbar, the British anthropologist, found that a person can hold roughly 150 stable relationships at once. Not 1,500. Not 5,000 connections on a profile. Around 150 people you know well enough to call, to trust, to ask for a real favor.

That is a generous allowance for a friendship circle. It is a starvation diet for hiring a superintendent, an estimator, or a project manager. When the role demands someone specific, 150 names is a pond. The person you actually need is somewhere in the ocean, and the ocean does not return your calls.

Watch how the limit plays out

Picture the search for a strong superintendent. You tap the network, the way you always have. Here is the sequence, and it is almost always the same sequence:

  • You call a handful of people.
  • You post the job.
  • A few résumés trickle in.
  • None of them are quite right.
  • Weeks pass.
  • The team absorbs the gap, then starts to fray under it.
  • Projects slow. Morale follows.

None of that is an effort failure or a market failure. It is a math failure. You drew from a 150-person circle for a problem the circle was never large enough to solve.

Getting past 150 is hard enough to be a profession

Here is what should give you pause: getting past Dunbar's number is so difficult that it created an entire line of work. The job exists because the limit is real.

What a matchmaker holds that a network cannot:

  • Warm relationships with thousands of construction professionals, not 150.
  • Knowledge of who is open to a move, including the ones who are not looking.
  • A read on timing, motivation, and whether someone will actually fit your operation.
  • Systems and dedicated hours pointed at the search while you run the business.

Trying to do it from your own contacts is like framing a high-rise with a hammer and a handsaw. You could, in theory. The question is why you would.

A matchmaker adds underwriting, not just names

The reflex is to think a matchmaker just hands you a longer list. That misreads the value. A longer list of strangers is noise. What you are actually buying is underwriting: a judgment about each person that you do not have the vantage point to make yourself.

Top candidates are not refreshing job boards. They are being courted, by someone who already knows what they want before they say it out loud.

Reach beyond the people you know, into the ones you should. Speed, because someone is searching full-time while you are running projects. Attraction, because the strongest people are not applying anywhere. And insight, the part that matters most: knowing what a candidate is really thinking, not the version they post online. That is the difference between a name and a durable match.

"I will just post the job and see who applies"

You can do that. And hope your next superintendent happens to be looking, happens to see the post, and happens to apply. Three coincidences stacked on top of each other, with a project schedule riding on all three landing.

That is not a hiring strategy. It is a wager you have decided to call a strategy because the alternative requires admitting the network ran out.

What this asks of you

You have built a strong business off relationships, and that instinct is not wrong. It is just bounded. The leaders who keep hiring well past 150 are not the ones with bigger address books. They are the ones honest enough to name the edge of their own reach and bring in someone whose reach starts where theirs stops.

If you want to see where your own circle ends and what sits past it, I will walk you through how I find, vet, and present the right person in your market. No pressure, and no pitch, just a real conversation.

You already know roughly how many people you can call. The only question is whether the next hire is hiding among them, or somewhere you cannot yet see.