Why Your Future Leaders Might Already Be Working For You (And Why Developing Them Makes Financial Sense)
- Martin Lawson
- 4 days ago
- 2 min read
Recruitment is expensive.
Replacing good people is expensive.
Poor management is expensive.
And yet many organisations continue searching outside the business for leadership talent while overlooking the people already sat inside their teams.
The question isn't always:
"Who do we need to hire?"
Sometimes it's:
"Who do we already have that we're not developing?"
Hidden Potential Doesn't Always Shout
The people with the greatest leadership potential aren't always the loudest.
They're often the dependable people.
The ones others naturally turn to.
The team member who calmly solves problems.
The technical expert who everyone trusts.
Potential rarely comes with a label.
It needs to be recognised and developed.
External Recruitment Is Expensive
According to UK data, replacing a mid-level employee can cost up to 75% of annual salary once recruitment, onboarding and lost productivity are considered.
Salary | Estimated Replacement Cost |
£30,000 | £22,500 |
£40,000 | £30,000 |
£50,000 | £37,500 |
Developing someone already in your organisation often costs a fraction of that.
And they already understand your customers, systems and culture.
Retention Is One Of HR's Biggest Challenges
The CIPD highlights that employee turnover has a significant impact on organisational performance and that improving retention remains a key focus for organisations.
Strong leadership matters because people experience the organisation largely through their manager.
Gallup estimates that managers account for around 70% of the variation in employee engagement, reinforcing the impact leaders have on performance, wellbeing and retention.
A Practical Example
Imagine a business employing 100 people.
Average salary = £40,000.
Annual turnover = 15%.
That means around 15 people leave each year.
If replacement costs are around £30,000 per employee, that's an annual cost of approximately:
£450,000
Now imagine better leadership, stronger support and clearer development pathways reduced turnover by just three people.
Three fewer leavers could represent:
£90,000 saved
Leadership Development Isn't Just For Senior Executives
Some of the biggest returns come from supporting:
Team leaders.
Supervisors.
Technical experts moving into management.
First-time managers.
Because one great manager doesn't just influence one person.
They influence an entire team.
Internal Promotion Builds Loyalty
Learning and development professionals cite retention, succession planning and leadership capability among their biggest priorities.
Promoting from within often brings:
Better cultural fit.
Faster onboarding.
Greater loyalty.
Lower recruitment costs.
Stronger succession pipelines.
The Real Question
Most organisations don't hesitate to invest in machinery, technology or software.
Yet their greatest competitive advantage has always been their people.
Your next great leader might already be working for you.
The question is:
Are you developing them, or waiting for somebody else to?
References
CIPD – Employee Turnover and Retention Factsheet https://www.cipd.org/uk/knowledge/factsheets/turnover-retention-factsheet/
CIPD – Learning at Work Survey
Ballards LLP – The Costs Behind Staff Turnover & Retention
Gallup – Managers account for 70% of the variance in employee engagement.
Adecco UK – Employee Retention Strategy
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