What a bad senior hire really costs you

Get a senior hire wrong and it can cost two to three times their salary to put right. Most companies still make that call on a gut feel and two nice conversations.

The bill is bigger than you think

When people picture the cost of a bad hire, they think of the salary they paid someone who did not work out. That is the smallest part. Add the exit and any settlement. Add the months a role sits empty or half done. Add the rehire, then the ramp before the replacement is productive. Add the quiet damage to the team that watched it happen, and the customers or projects that stalled in the meantime. On a senior role, two to three times salary is a conservative number.

Why it keeps happening

It is not carelessness. It is speed and instinct. Founders hire the person they liked in the room, move fast because the gap hurts, and lean on a couple of unstructured interviews. But likeability is not capability, and a good chat is not evidence. The most expensive hires almost always felt great at the time.

How to de-risk it

You do not need a recruitment machine. You need discipline on the few things that matter.

• Define the role commercially first. What does success look like in numbers at six and twelve months, decided before you write the job ad.
• Use a scorecard. Agree what you are assessing and score every candidate against it, so you compare people rather than vibes.
• Structure the interviews. Same core questions, evidence over impressions, and more than one person in the room.
• Use behavioural insight. Profiling tells you how someone actually operates and where they will struggle, which a CV never will.
• Take references that count. Specific questions to people who managed them, not a friendly character witness.

None of this is slow. It is a few hours of structure that protects you from a six-figure mistake.