What does a bad senior hire really cost a deep-tech company?
The biggest cost is rarely the salary or recruitment fee. A failed senior hire can cost a deep-tech business 18 to 24 months of commercial progress, lost customers, delayed market entry, leadership time and missed opportunities that may never appear clearly on the P&L.
Where does your company need to be 24 months from now?
Before making a senior hire, I think that's one of the most important questions a deep-tech CEO can answer.
Not: “What experience should this person have?”
And not even: “How quickly can we get someone in?”
But: What does this person actually need to have achieved 24 months from now for this hire to have been a success?
Because the real cost of getting a senior hire wrong isn't their salary. It isn't the search fee either. It's the time you lose. And in deep tech, that can mean losing years.
What happens when a critical hire goes wrong?
Imagine a Series B deep-tech company needs its first truly senior commercial leader.
The technology is strong. Investors want to see commercial traction. The company needs to move beyond founder-led sales, build a proper pipeline, secure strategic customers and prepare for international expansion.
It takes six months to make the hire.
The new CRO arrives.
The CEO spends significant time onboarding them. The founders introduce them to customers and investors. Other members of the leadership team help them understand the technology and market. They start building a team.
Twelve months later, it becomes clear it isn't working.
Revenue hasn't developed as expected. The commercial organisation isn't where it should be. Key relationships haven't been built.
Eventually, the company makes the difficult decision to change the CRO.
Now they need to start again.
Another search.
Another notice period.
Another onboarding.
Another ramp-up.
By the time the replacement is fully effective, the company could easily be two years further down the road from when it first identified the need.
And that's the number I think matters.
Not the recruitment fee.
24 months.
What could your company have achieved in those 24 months with the right person in the seat?
The P&L doesn't show you the true cost
We tend to calculate bad hires using the costs we can easily see.
Salary. Bonus. Equity. Recruitment fees. Severance.
But that's only the beginning.
Let's put some numbers against it.
Take that hypothetical Series B deep-tech company hiring a CRO on a €300,000 package including variable compensation.
It takes six months to find them. They stay for 12 months before the company accepts that the hire isn't working.
Start adding it up.
Compensation and employer costs: around €375,000.
Search costs: €75,000.
CEO and leadership time spent interviewing, onboarding, supporting and eventually managing the situation: perhaps another €75,000.
The cost of having that commercial leadership gap before they joined: €100,000.
Exit costs, another search and another round of leadership time onboarding their replacement: approximately €195,000.
You're already at more than €800,000.
And we haven't included the biggest number.
Imagine this CRO was hired to help take the company from €5m to €10m in revenue, establish a US commercial operation and secure three strategic customers.
Twelve months later, none of that has happened on schedule.
I wouldn't claim that every euro of missed revenue was caused by one bad hire. Businesses are more complicated than that.
But that's exactly the point.
The €800,000 is the part you can count. The potentially millions in lost opportunity, and the 18 to 24 months of strategic progress the company may never recover, are the part you can't easily put on a P&L.
The customers that weren't won.
The partnerships that weren't built.
The market that wasn't entered.
The product decisions that were delayed.
The team that wasn't developed.
The next funding round that became harder because the milestones investors expected weren't achieved.
Suddenly, debating whether an executive search costs €50,000 or €75,000 can be completely the wrong conversation.
You're trying to save tens of thousands on a decision whose downside can run into millions.
Why the 24-month question matters
Before you start searching for a senior leader, you need clarity about where the company is going.
If you're hiring a CRO, for example, don't start with:
“We need someone with 15 years’ semiconductor experience who has managed a team of 20.”
Start with:
“In 24 months, what must be different because this person joined us?”
Perhaps revenue needs to have moved from €5m to €15m.
Perhaps 60% of sales need to come from outside the founder network.
Perhaps you need your first three strategic US customers.
Perhaps the company needs to move from opportunistic selling to a repeatable commercial engine.
Now you can work backwards. Who has actually done something comparable, in what environment, at what stage and with what resources? What went wrong along the way? And crucially, how do they compare with the other people capable of achieving the same outcome?
That's a very different search from matching CVs against a job description.
Because there is another dangerous question in senior hiring:
“Can this person do the job?”
That's not enough.
The better question is:
“Of the people who could do this job, who gives us the greatest probability of getting where we need to be in 24 months?”
The fastest hire isn't always the fastest route to your destination
This is particularly important in deep tech because two years is a very long time.
Your competitors aren't standing still while you correct a hiring mistake. They're raising capital, winning customers, industrialising technology, building teams, entering new markets and forming partnerships.
And the technology itself is changing.
A bad senior hire doesn't simply mean you've paid the wrong person for 12 months.
It can mean that 24 months after identifying a critical business need, you're still trying to solve the same problem.
That’s why I think CEOs and boards should change the way they think about the cost of executive hiring.
Don't ask:
“How much will it cost us to hire this person?”
Ask:
“Where must we be 24 months from now, and what will it cost us if we hire someone who doesn’t get us there?”
Because the most expensive senior hire isn't necessarily the person who costs the most to recruit.
It's the person you realise, two years later, was never the right hire in the first place.
What have you seen?
I'd be interested to hear from founders, CEOs and investors.
What's the real cost you've seen from getting a senior hire wrong? Not their salary, but the actual impact on the business.