Most firms believe they give their best work to their best people. In my experience, they give it to their most visible people.

It isn't a belief anyone would defend out loud. Ask a managing partner how work gets allocated and they'll talk about skills, experience, diversity, the right person for the client. And they'll mean it. But watch how staffing actually happens, and a different picture emerges. It happens quickly, usually under pressure, often on a Friday when a project needs a team by Monday. There is rarely time to think carefully about who is genuinely the best fit. There is only time to think of someone.

So the work goes to whoever comes to mind first. The consultant who's genuinely brilliant but low-key gets passed over again for the one who's front of mind. The manager, under pressure, reaches for the same three trusted names, because there's no time to go looking. And somewhere in the background, a capable person slowly realises that doing excellent work is no guarantee of being picked for it.

None of this is anyone being deliberately unfair. It's simply what happens when decisions about people get made at speed, by human beings, on instinct and relationships. Over time, visibility becomes the shortcut for ability. It's an easy substitution to make and a hard one to notice, because every individual decision looks perfectly reasonable. It's only in aggregate, across a year and a whole firm, that the pattern shows itself.

And the pattern has a cost. It's easy to miss, but it's real, and it lands in three places at once.

Your most visible people get steadily overloaded. They're on everything, because they're the ones everyone thinks of, and eventually both the quality of their work and their goodwill start to thin. Meanwhile, genuinely capable people sit under-used, wondering why the interesting work never quite reaches them. And some of your best, quietest performers eventually leave. Not because they weren't good enough, but because no one ever quite saw that they were. That last one rarely gets attributed to its real cause. It shows up as a resignation, an exit interview, a replacement to hire. The word "visibility" never appears.

I don't think the answer is a better process, or at least not only that. The leaders I've respected most weren't the ones with the tightest systems. They were the ones who'd made a habit of a single, deceptively simple question: who haven't we thought of? They could see past the obvious names to the people doing excellent work out of view, and they treated finding those people as part of the job rather than a nice-to-have.

That's a discipline, not a tool. And it's worth far more than most firms realise, because the talent it recovers is talent you're already paying for. It's sitting inside the building, doing good work, waiting to be seen.

It's the idea that runs through everything I write, and through the book. The most valuable asset a professional services firm has is rarely the one on the balance sheet. It's the judgment and capability of its people, much of which the firm cannot yet see. Learning to see it, and to act on it, is the real advantage that separates the firms pulling ahead from the ones still wondering why their best people keep leaving.