how-to
How Do You Develop High-Potential Employees into Leaders?
Last Updated: 25 October 2026
Quick Summary
To develop high-potential employees into leaders, spot them early by watching for influence without authority and appetite for responsibility, then give them a one-page plan with two or three specific goals, a named mentor, protected time in the diary and a review within 90 days. The experiences matter more than the courses, so adjust their day job to make room.
- Internal leaders already understand your systems, customers and culture, so filling vacancies from within is faster and loses fewer people.
- High potentials ask about the wider business and help colleagues grow, while high performers master their own work.
- Keep a simple talent list of three or four names per team and review it each quarter.
- Plans fail when nothing comes off the employee's plate, so adjust the day job to protect development time.
- Name two possible successors for each critical role and review the succession plan twice a year.
Table of Contents
- Why Developing High-Potential Employees Matters More Than Hiring Outside
- How to Spot High-Potential Employees Before Anyone Else Does
- Building a Leadership Development Plan for Employees That Actually Gets Used
- Leadership Skills Examples You Can Coach Against Week by Week
- Choosing Leadership Development Programmes That Stick
- Succession Planning for Future Leaders Without the Guesswork
- Common Mistakes When Developing High-Potential Employees
- Book a Conversation About Your Leadership Pipeline
- Frequently Asked Questions
Why Developing High-Potential Employees Matters More Than Hiring Outside
To develop high-potential employees into leaders costs less than hiring outside, and it keeps knowledge you already paid for. External hires arrive without your systems, your customers or your culture. Internal candidates already have all three.
Teams that grow leaders from within fill vacancies faster and lose fewer people. Teams that keep buying in senior talent find the same gaps reopening a year later.
The case for building rather than buying comes down to three things:
- Internal leaders understand how decisions actually get made
- Retention improves when staff can see a route upward
- Succession stops being a scramble every time someone resigns
Hiring outside still has a place. It brings fresh thinking and skills you lack. But relying on it as your main source of leaders is expensive and slow.
The rest of this guide covers how to spot potential early, build a development plan people stick to, and choose programmes that deliver. We will also cover the mistakes that quietly waste your budget.
How to Spot High-Potential Employees Before Anyone Else Does
High-potential employees are people who show the ability and drive to take on bigger roles, not just people who perform well today. Spotting them early gives you years to prepare them. Wait until a vacancy opens and you are choosing under pressure.
Managers often confuse two different groups. Here is the distinction that matters:
The difference between high performers and high potentials
A high performer delivers excellent results in their current role. A high potential shows signs they could deliver in a role they have not held yet.
The difference shows up in behaviour, not output:
- High performers master their own work and rarely need help
- High potentials ask about the wider business and volunteer for unfamiliar problems
- High performers protect their time
- High potentials make time to help colleagues grow
- High performers want recognition
- High potentials want responsibility
A common mistake is promoting your best technician into management. They were excellent at the job, not necessarily at leading people. Test for leadership appetite before you commit.
Watch for these signals over a few months:
- They influence peers without formal authority
- They recover quickly from setbacks and ask what to change
- They explain complex things simply
- They spot problems before they land
Keep a simple talent list and review it each quarter. Three or four names per team is plenty.
Building a Leadership Development Plan for Employees That Actually Gets Used
Most employee leadership development plan documents get written once and never opened again. The reason is usually the same: the plan was built for the organisation, not for the person.
A plan that survives a busy quarter has four parts:
- Two or three specific goals tied to real business needs, not generic aims
- Named support, a mentor, a coach or a line manager who owns check-ins
- Time in the diary, protected hours, booked in advance
- A review date within 90 days
What goes into a plan that survives a busy quarter
Keep it short enough to read in five minutes. One page beats ten.
Include these fields:
- Current role and the role they are being prepared for
- Two strengths to build on
- One gap that matters most right now
- The specific experiences they will get: leading a project, chairing a meeting, presenting to senior staff
- Who they can ask for help
- The date of the next review
The experiences matter more than the courses. People learn leadership by leading, then reflecting on it with someone experienced. If your mentors need support to do that well, mentoring skills training gives them the tools to structure those conversations properly.
Watch out: plans fail when the employee's day job is not adjusted to make room. If nothing comes off their plate, the development work is the first thing dropped.
Leadership Skills Examples You Can Coach Against Week by Week
Leadership skills examples give managers something concrete to observe and give feedback on. Vague aims like "be more strategic" cannot be coached. Specific behaviours can.
Pick two or three to focus on each quarter. Here are examples that work well in practice:
- Giving clear direction: can they set a task so someone else can act without asking three follow-up questions?
- Handling difficult conversations: do they raise issues early, or wait until they boil over?
- Delegating real work: do they hand over whole pieces of work, or just tasks?
- Coaching others: do they ask questions before giving answers?
- Making decisions with incomplete information: can they commit and adjust, or do they stall?
Map each skill to a weekly moment. For example, "handling difficult conversations" gets coached at the next one-to-one where a small issue needs raising. The manager observes, then gives feedback the same week.
This weekly rhythm beats an annual course. It builds habits rather than knowledge. If you want a structured set of behaviours to work from, our inspirational leadership skills course covers the practical skills that make the biggest difference in day-to-day management.
Choosing Leadership Development Programmes That Stick
Leadership development programmes fail for one main reason: they are treated as an event rather than a process. A day out of the office feels productive. Three months later, nothing has changed.
The programmes that stick share a few features:
- Content tied to real situations the delegates face
- Practice and feedback, not just presentation
- Follow-up sessions spaced weeks apart
- Line managers involved before and after
When you compare options, ask providers these questions:
| Question | Why it matters |
|---|---|
| How is the content tailored to our sector? | Generic examples get forgotten fast |
| What happens after the course ends? | Follow-up is where behaviour changes |
| Can sessions fit around shift patterns? | Stretched managers miss full-day events |
| How do you measure whether it worked? | You need evidence for your leadership team |
A useful rule: if a provider cannot explain what delegates will do differently the week after the course, keep looking. For a fuller breakdown of what separates strong programmes from weak ones, see our guide to the key features of effective leadership training courses. If you are weighing formats, this comparison of leadership coaching versus training for managers sets out where each works best.
Succession Planning for Future Leaders Without the Guesswork
Succession planning for future leaders means naming who could step into each critical role, and what they need before they can. Without it, every resignation becomes a crisis.
Build it in four steps:
- List critical roles, the ones where a gap would hurt within weeks
- Name two possible successors for each, even if they are not ready yet
- Assess the gap between where they are and what the role needs
- Set a development route with dates, not intentions
Review the plan twice a year. People leave, priorities shift, and someone you ruled out may surprise you.
A common mistake is naming successors and telling nobody. Keep it confidential where appropriate, but make sure the person gets the experiences that prepare them. A name on a spreadsheet develops no one.
For staff who are ready to formalise their development, a recognised qualification gives structure and credibility.
Common Mistakes When Developing High-Potential Employees
The same mistakes when you develop high-potential employees show up again and again, and each one wastes money and goodwill.
- Confusing performance with potential. Your best operator may not want to manage.
- Developing people with no route to use the skills. They leave to find one.
- Skipping the line manager. If the manager is not bought in, nothing changes.
- Running one-off courses with no follow-up. Knowledge fades within weeks.
- Ignoring the day job. Development time gets eaten by operational pressure.
- Keeping the plan secret. People cannot prepare for a role they do not know about.
One more: treating development as a reward for loyalty. It is an investment in capability. Choose people who want the responsibility, not just the title.
Book a Conversation About Your Leadership Pipeline
Building a leadership pipeline takes time, structure and honest conversations. The hardest part is not choosing a course. It is making development survive the pressure of a normal working week.
At MacMillan Training Partnership, we design leadership programmes that fit around busy professionals. Courses run in physical and virtual classrooms, with in-house options tailored to your sector and your specific challenges. Book more than eight weeks ahead and you can take advantage of our Early Bird discount of up to £100.
Get started with MacMillan Training Partnership and turn your strongest people into the leaders your organisation will need next year.
Frequently Asked Questions
How do you develop high-potential employees into leaders?
Start by separating potential from current performance, then give each person a written development plan with two or three specific goals, a mentor, and regular check-ins. Pair that with stretch assignments that carry real responsibility, not just extra admin. Formal leadership development programmes add structure and outside perspective, but they work best when the line manager coaches between sessions. Review progress every quarter and adjust the plan rather than letting it sit in a drawer.
How long does it take to develop a high-potential employee into a leader?
Most organisations should plan on 12 to 24 months before someone is ready to step into a leadership role with confidence. The first six months usually focus on self-awareness and core skills such as giving feedback and running meetings. The next year adds wider exposure: leading a project, deputising for a manager, and working with other departments. Timelines shorten when the person already manages work informally and lengthen when they have had no exposure to budgets, people issues or stakeholder management.
What are common mistakes when developing high-potential employees?
The most frequent mistake is confusing high performance with leadership potential, which promotes strong technicians into roles they dislike. The second is treating development as a training day rather than an ongoing plan with coaching and stretch work. Third, many organisations tell people they are high potential and then say nothing further, which raises expectations that are never met. Finally, plans often ignore the line manager, who controls the day-to-day opportunities that make or break development.
How can managers measure leadership potential and progress?
Use a small set of observable measures rather than gut feel. Track whether the person seeks feedback and acts on it, how they handle a difficult conversation, whether colleagues choose to work with them, and how they perform on a stretch task compared with the brief. Add a 360-degree review before and after a development programme, plus a simple readiness rating agreed with the line manager. Progress against the written leadership development plan is the most reliable indicator of whether the investment is working.
