When a hire doesn't work out, the salary you paid is the smallest part of the bill. The full cost is spread across recruitment fees, onboarding time, lost productivity, the drag on the team's morale, and the months it takes to start the search all over again. For a senior role, the total can run to several times the annual salary.
Where the cost hides
- Direct costs: advertising, agency fees, screening time, and the salary paid for work that didn't land.
- Productivity loss: the role sits unfilled or under-filled, and a new hire takes months to reach full output — output you never get if they leave early.
- Team impact: colleagues absorb the slack, pick up the mistakes, and feel the morale dip when a hire visibly isn't working.
- Opportunity cost: the projects that stalled, the clients that waited, the momentum that never built.
Why bad hires happen
Most poor hires aren't a failure of skill assessment — they're a failure of fit and scoping. The candidate could do the work but didn't suit the environment, or the role was never clearly defined, so “good” was a moving target. Pressure to fill a seat quickly makes it worse: speed without rigour is how mismatches slip through.
How to protect against it
Define success before you source. Agree what the person must achieve in their first six and twelve months, and what “great” looks like. Assess for the environment, not just the skill set — how someone works matters as much as what they can do. Use structured interviews so every candidate is measured against the same bar. And resist the urge to settle when you're tired of searching; the wrong hire is far more expensive than a longer wait.
A good consultancy earns its keep precisely here — by slowing you down at the right moment and helping you hire once, well, instead of twice.