Your VP of Engineering gives two weeks notice. She’s been carrying institutional knowledge that took eight years to build, relationships with three key clients who specifically asked for her, and the trust of a 40-person team that was hired largely because of her reputation.
You don’t have a successor. You don’t even have a shortlist.
This scenario plays out in organizations of every size, and it’s almost always preventable. The companies that handle leadership transitions smoothly aren’t lucky. They’ve been doing two things simultaneously for years: succession planning and leadership development.
Why do these two things need each other?
Succession planning without leadership development is just a spreadsheet with names on it. You’ve identified who might fill a role, but you haven’t prepared them to actually do it. When the moment comes, they’re thrown into a position they’re not ready for.
Leadership development without succession planning is training without direction. People build skills, but those skills aren’t connected to the specific roles the organization will need filled. The development is real, but it’s not strategic.
When you connect them, something powerful happens. Development becomes targeted. Every stretch assignment, coaching session, and cross-functional project is building toward a specific future capability that the organization actually needs.
How do they reinforce each other?
| Succession planning provides… | Leadership development provides… |
|---|---|
| Clarity on which roles matter most | Skills and experience to fill those roles |
| A timeline for readiness | A structured path to get there |
| Visibility into talent gaps | Programs that close those gaps |
| Accountability for development | Motivation for the people being developed |
| Organizational continuity planning | Individual growth and career satisfaction |
The feedback loop matters too. As you develop people, you learn who thrives under pressure, who adapts to ambiguity, and who emerges as a natural leader in unfamiliar territory. That information feeds back into your succession plans, making them more realistic.
What does an effective process look like?
Let’s walk through the steps that connect succession planning with leadership development into a single coherent system.
1. Identify the roles that would hurt most if vacant tomorrow.
Not every role needs a succession plan. Focus on the positions where a vacancy would create operational disruption, loss of critical relationships, or strategic setbacks. Usually that’s 10 to 15% of your roles.
2. Assess who could potentially fill those roles.
Look for potential, not just current performance. Someone who’s a stellar individual contributor might not have the interest or aptitude for leadership. The person who volunteers for cross-team projects, handles ambiguity well, and is curious about how other parts of the business work? Pay attention to them.
3. Map the gap between where they are and where they’d need to be.
For each potential successor, identify the specific skills, experiences, and knowledge they’d need to be effective in the target role. Use skill gap analysis to make this concrete rather than vague.
4. Build individualized development plans.
Generic leadership training won’t close specific gaps. If someone needs experience managing a P&L, give them budget responsibility for a project. If they need cross-functional exposure, rotate them through another department for a quarter.
Effective development plans typically include:
- One or two stretch assignments that simulate key aspects of the target role
- Regular coaching or mentoring from someone who’s held the role
- Structured feedback cycles (quarterly at minimum)
- Clear milestones and readiness indicators
5. Create the exposure that builds organizational knowledge.
Successors need to understand the context of the role, not just the skills. Include them in leadership meetings. Let them sit in on strategic conversations. Introduce them to key stakeholders and clients. This knowledge transfer can’t be crammed in during a two-week handover.
6. Review and adjust regularly.
People’s interests change. Business needs shift. Someone you identified as a successor two years ago might have moved in a different direction. Review your succession plans at least twice a year, and adjust development plans accordingly.
What does this look like in practice?
Here are five development approaches that directly serve succession planning:
Mentorship programs with succession intent. Pair potential successors with current leaders in target roles. Not casual coffee mentoring, but structured relationships with specific learning objectives tied to role readiness.
Stretch assignments that simulate leadership demands. Leading a cross-functional project, managing a team through a reorganization, or owning a client relationship. These assignments test and develop capabilities that training courses can’t replicate.
Job rotations with purpose. When someone rotates through finance, operations, and product, they don’t just learn what those functions do. They build the organizational perspective that senior leaders need. Make sure rotations have clear learning objectives, not just exposure.
Leadership training that addresses real gaps. Training workshops work when they’re targeted at specific skill gaps identified through the succession planning process. Generic leadership seminars don’t move the needle.
Development plans with teeth. Each potential successor should have a written plan with measurable milestones, regular check-ins, and honest assessments of progress. A plan nobody reviews is just a document.
What goes wrong when these systems are disconnected?
I’ve seen a few patterns repeat across organizations:
The “name on a list” problem. The organization has a succession plan in a binder somewhere. Nobody’s actually being developed. When a vacancy occurs, the named successor is no more ready than anyone else.
The “training for training’s sake” problem. The organization invests heavily in leadership development. People attend programs, earn certificates, feel good. But there’s no connection between what they’re learning and what the organization will actually need them to do.
The “surprise promotion” problem. Someone gets thrust into a leadership role because they were the best performer in their previous role. No preparation, no transition support, no development plan. They struggle, and the organization loses a great contributor and gains a mediocre leader.
The “single point of failure” problem. One person holds all the critical knowledge for a key function. Everyone knows it. Nobody does anything about it until that person leaves, retires, or burns out.
How do you get started if you have neither system in place?
Start simple. You don’t need an enterprise-level talent management platform to begin.
Week 1: List the five roles in your area that would be hardest to fill if they became vacant tomorrow.
Week 2: For each role, identify one or two people who could potentially grow into it within 12 to 24 months. Have an honest conversation with them about their career interests.
Week 3: For each person, identify the single biggest gap between their current capabilities and what the role would require. Design one development activity to start closing that gap.
Month 2 onward: Build a cadence of quarterly reviews where you assess progress, adjust plans, and update your succession thinking based on what you’ve learned.
The compound effect is real. Organizations that have been doing this for three to five years have a fundamentally different relationship with leadership transitions than those starting from zero. They’re not scrambling when someone leaves. They’re executing a plan that’s been in motion for years.
Ready to develop the specific skills your future leaders need? Start a conversation with Merlin to build a targeted development approach for your team.