Here is a number worth sitting with: 77% of organizations say they currently have a leadership gap, yet only 5% have implemented leadership development across all levels of their organization. That disconnect is not a minor oversight — it is a systemic vulnerability. And according to research from McKinsey, up to 40% of leaders fail within the first 18 months of a new role, not because of technical incompetence, but because they underestimate the relational and strategic complexity of senior leadership. The organizations that will thrive in the coming years are the ones that treat leadership development as infrastructure, not an afterthought.

Why the Pipeline Keeps Breaking

A 2025 Deloitte report found that 60% of executives doubt their leadership pipelines are ready for the challenges ahead. This is not a talent problem — most organizations have plenty of capable, high-performing individuals. The gap lies in preparation. Promotion decisions are still frequently made on the basis of technical performance rather than leadership readiness. An exceptional individual contributor gets moved into a management role, receives minimal structured support, and is then expected to lead teams, navigate conflict, drive strategy, and develop others — often simultaneously.

When the support does not match the complexity of the role, the result is predictable: disengaged teams, derailed leaders, and costly turnover. Leadership transitions are among the highest-risk moments in any organization’s lifecycle, and yet they are among the least invested in.

The 70-20-10 Model Is a Starting Point, Not a Strategy

Many organizations still rely on the well-known 70-20-10 model of development: 70% of learning from on-the-job experience, 20% from relationships and mentoring, 10% from formal training. The proportions are not wrong — experiential learning is genuinely powerful. The problem is that most organizations have invested heavily in the 10% (training programs, workshops, e-learning platforms) while leaving the other 90% largely unstructured and unsupported.

On-the-job experience only develops leaders if those experiences are paired with reflection, feedback, and intentional meaning-making. Without that scaffolding, people simply repeat patterns — effective ones and ineffective ones alike. Stretch assignments become stress assignments. Mentoring relationships stall because neither party knows how to make them generative. The model only works when all three elements are purposefully designed, not assumed to happen naturally.

What Evidence-Based Leadership Development Actually Looks Like

There is a growing movement in leadership development away from intuition-based promotion decisions and toward science-backed assessment and development. According to 2026 research from Pinsight, organizations that use rigorous, evidence-based approaches to identifying and developing leaders see significantly stronger outcomes — not just in individual performance, but in team engagement and business results.

Evidence-based development typically involves four elements working in concert:

• Baseline assessment — understanding current capability across both technical and relational dimensions, using validated tools rather than subjective observation alone.
• Targeted development planning — building growth plans around specific capability gaps rather than applying generic leadership programs to everyone at a given level.
• Real-time feedback loops — McKinsey research shows that programs integrating continuous feedback and analytics yield 5.7 times greater ROI than traditional training approaches.
• Accountability structures — progress reviews, peer cohorts, and coaching relationships that ensure development does not get crowded out by the day-to-day demands of the role.

None of this requires a large budget. It requires intentionality and a willingness to treat leadership capability as something that is built, not born.

The Role of Executive Coaching in Closing the Gap

Executive coaching has moved from a remedial tool — something organizations used to fix problem leaders — to a strategic investment in high-potential development. The data supports this shift. Research from McKinsey finds that organizations embedding systematic coaching into their leadership development record 25% stronger business outcomes than their peers. Managers who received executive coaching following leadership training showed a 70% improvement in work performance.

What makes coaching effective at this level is not just the skills the leader acquires — it is the self-awareness they develop about how they show up, how they create conditions for others to do their best work, and where their default patterns may be limiting the people around them. The best coaching relationships create a space for leaders to think out loud, challenge their own assumptions, and make more deliberate choices rather than simply reacting.

This is especially important as organizations navigate AI integration, distributed teams, and ongoing uncertainty. Leaders cannot succeed in complex environments by following a playbook. They need the psychological flexibility, relational intelligence, and strategic clarity that only comes from intentional development — and a trusted, skilled thinking partner.

The Leadership Development Investment Your Organization Cannot Afford to Skip

Leadership development yields approximately $7 for every $1 invested — one of the strongest returns in the talent development space. And yet, the majority of organizations continue to treat it as a discretionary line item, something to fund when times are good and cut when margins tighten. That logic has it backwards. The organizations that invest consistently in building leadership capability are precisely the ones that maintain their footing when conditions get difficult.

If your organization is one of the 77% navigating a leadership gap, the starting point is not a new training program. It is an honest assessment of where your pipeline actually stands, what your leaders most need to grow into their roles, and what structures need to be in place to support that growth in a sustained, meaningful way.

That is work I do with leaders and organizations every day. If you are ready to take a more strategic, evidence-based approach to leadership development, I would love to talk. Visit the Work With Me page to find out how we can build your leadership pipeline together.