The leadership development industry has a blind spot. A significant one.
Walk into any corporate training room, browse the business section of a bookshop, or scroll through LinkedIn, and you will find an endless stream of content focused on the external aspects of leadership: frameworks for decision-making, case studies of successful organisations, strategic methodologies, and action planning templates. The emphasis is consistently on what leaders should do rather than who they need to become.
Do not misunderstand me - these external tools matter enormously. Strategic thinking, operational excellence, and tactical execution are fundamental to leadership success. But they represent only half the equation, and perhaps not even the most important half.
Leaders are remarkably comfortable in the realm of external development. It feels familiar, measurable, and safe. When I work with senior executives, they eagerly dive into discussions about:
This external focus makes perfect sense. Most leaders have built their careers by mastering these domains. They have been rewarded for their analytical thinking, their ability to solve complex problems, and their skill in managing systems and processes. The external world of leadership feels controllable, logical, and quantifiable.
Yet mention the need for inner work - examining personal patterns, exploring emotional triggers, or investigating unconscious biases - and watch the energy in the room shift.
"Can we focus on something more practical?" they ask. "How does this relate to business outcomes?" "Is this not just therapy disguised as leadership development?"
This resistance is understandable. Internal work requires leaders to venture into unfamiliar territory where their usual tools and frameworks offer little protection. It demands vulnerability, self-examination, and the willingness to confront aspects of themselves they might prefer to keep hidden.
But here lies the fundamental truth I have discovered through years of coaching
senior leaders:
Your external impact is directly limited by your internal awareness.
The most accomplished senior leaders I work with often share a common frustration: despite their extensive experience and proven track record, they find themselves repeatedly encountering the same leadership challenges. They may excel at developing brilliant strategies, yet struggle to build the coalition needed for implementation. They might be exceptional at crisis management, but find themselves creating urgency where none should exist. They could be masterful at client relationships, yet experience persistent tension with their own executive team.
These patterns persist not because leaders lack strategic knowledge or technical skills. They persist because they originate from internal dynamics that external training cannot address. These are not strategy problems - they are consciousness problems.
This is where vertical development becomes essential. Unlike horizontal development, which adds new skills and knowledge (the external game), vertical development expands the very capacity through which we perceive and respond to the world (the internal game).
When leaders engage in this inner work, something remarkable happens. The same strategic challenges that once felt intractable become more manageable. The interpersonal dynamics that previously drained energy begin to flow more smoothly. The decisions that used to feel overwhelming become clearer and more confident. This is not about becoming a different person, but about becoming more conscious of who you already are - and choosing your responses rather than being driven by automatic reactions.
Given the clear benefits, why do so many leaders resist this inner development?
Several factors contribute:
Cultural Conditioning: Many organisational cultures prize logic over emotion, action over reflection, and results over process. Inner work can feel soft or irrelevant in such environments.
Vulnerability Concerns: Examining internal patterns requires admitting imperfection and uncertainty - qualities that many leaders believe they cannot afford to show.
Measurement Challenges: The results of inner work are often more subtle and long-term compared to the immediate feedback from external improvements.
Time Pressures: Inner work requires patience and sustained attention, commodities that feel scarce in high-pressure leadership roles.
Previous Negative Experiences: Some leaders have encountered poorly facilitated development programmes that felt intrusive or unprofessional.
Identity Mindtraps: Perhaps most significantly, many senior leaders fall into what can be called identity mindtraps - becoming so identified with their role, expertise, or past successes that any suggestion of development feels like a threat to their sense of self. The very competence that brought them to senior positions can become a prison, making it difficult to acknowledge areas for growth without feeling like they are undermining their credibility or value.
The key to overcoming resistance is making inner work practical and relevant to business outcomes. Here are approaches that have proven effective:
Start by connecting internal patterns to real business challenges.
For instance, a recurring misalignment in your senior team may not stem from strategy, but from how trust is built, how conflict is handled, or how leaders seek control under uncertainty.
Help leaders see the direct cost of reactive behaviours — delayed decisions, disengaged teams, missed innovation — and how self-awareness can shift results.
Swap therapeutic jargon for strategic terms. Frame inner work as performance optimisation.
Instead of “self-exploration”, talk about “pattern recognition”. Instead of “emotional processing”, use “decision-making reflexes under pressure”. Reframe inner development as optimising your leadership operating system. This reinforces that the goal is not personal transformation for its own sake — it’s to lead more effectively, especially in complexity.
Leaders don’t need to become experts in psychology — but they do need to understand their own operating system. Inner work isn't about becoming someone new; it's about removing what's in the way of your best leadership.
The goal is not endless reflection. It is to notice when patterns limit effectiveness, and to build the capacity to choose differently in the moment.
That shift — from automatic to intentional — is what unlocks the next level of leadership.
Use structured assessments and tools that offer clear entry points into inner work. These make the process credible and actionable for analytical leaders.
Recommended tools include:
These frameworks help turn introspection into informed, high-leverage action.
Embed inner work within strategic priorities — not as a standalone initiative.
Bring vertical development into transformation programmes, offsites, or team interventions. For example: “As we shift our go-to-market model, what leadership patterns are supporting this change — and which ones are holding us back?”
When inner work is positioned as part of driving strategy, not separate from it, leaders engage more willingly — and meaningfully.
The leaders who will thrive in our increasingly complex world are those who recognise that their greatest asset is not their strategic acumen or technical knowledge - though these remain important - but their capacity for conscious leadership.
This means leaders who:
The path to this kind of leadership cannot be found in another framework, case study, or strategic methodology. It requires the courage to look inward, to examine the very consciousness through which you lead.
Your next breakthrough is not in the latest business book or consulting report. It is in the mirror.
If you are ready to explore vertical development, consider these first steps:
The question is not whether you have time for this inner work. The question is whether you can afford not to do it. The next frontier of leadership is not technical — it’s personal. The mirror is waiting.
Written by:
Jessica Choo, Founder & Chief Strategist of ILS
With over 30 years of consulting and operational experience, Jessica is a highly esteemed strategist in performance, talent, and organisational development. Her expertise spans change management and strategic leadership development, where she has successfully guided over 15,000 executives across more than 200 projects in 20 countries. Jessica employs a behavioural science approach to foster culture and people development, achieving remarkable outcomes in organisational performance and culture change initiatives. As a professional coach, she empowers senior leaders to think clearly, lead confidently, and commit to impactful actions. Furthermore, her collaboration with the Growth Mindset Institute in crafting innovative solutions has positioned her as a trailblazer in the field of sustainable organisational change.