The Four Stages of Masculine Maturity is a framework for men’s development adapted by Neil Bierbaum (MPhil, MCC) from the work of Robert Bly and Carl Jung.

© Neil Bierbaum | Master Certified Coach (MCC) | MPhil Leadership Coaching (cum laude) | 10,000+ Coaching Hours | Johannesburg, South Africa & Global

Most leadership development assumes that talented people are developmentally ready for what we’re asking of them — that the problem is skills, not psychology.

For a significant proportion of men in modern organizations, that assumption is wrong.

The research is consistent across Bly, Gurian, Jung, Hollis, and von Franz: men do not develop gradually into psychological adulthood. They develop through threshold experiences — structured encounters with difficulty, consequence, and otherness that force integration of new capacities.

Without those thresholds, chronological adults remain psychologically adolescent — capable but not committed, talented but not taking ownership, skilled but not leading.

This is not a moral judgment. It is a developmental observation, and it points to a solution that standard performance management and competency frameworks are not equipped to provide.

STAGE 1a: The Rebel (Active) “I’ll do it my way, but I’m not sure what my way is.”

Psychological signature: Asserting independence without having developed the internal resources to sustain it. Knows what it doesn’t want. Less clear on what it is building.

Organizational indicators:
→ Resists authority reflexively (even when the authority is right)
→ Generates ideas without implementing them
→ Starts projects that stall when difficulty increases
→ Protects ego by staying in domains where competence is already established

What this stage requires to move forward: Encountering genuine difficulty that cannot be solved by intelligence alone — requiring persistence, relational skill, and tolerance for not-knowing.

Stage 2 in high-potential men: Often interpreted as attitude problems or lack of organizational alignment. Usually a developmental stage, not a character flaw.

STAGE 1b: The Rebel (Passive) “Someone should take care of this.”

Psychological signature: Waiting to be told what to do. Expecting protection from consequences. Looking for someone to rescue, validate, or take responsibility.

Organizational indicators:
→ Seeks permission for decisions clearly within authority
→ Defaults upward when facing ambiguity
→ Blames circumstances, others, or the organization for outcomes
→ Performs effort rather than taking ownership of results

What this stage requires to move forward: A genuine experience of responsibility without a safety net. Real consequences. No rescue.

Stage 1 in high-potential men: Often masked by technical competence. High-performing individual contributor who is excellent at executing tasks but avoids owning outcomes.

STAGE 2: The Initiated Man “I know what I am responsible for, and I will carry it.”

Psychological signature: Has crossed threshold experiences that established genuine self-knowledge. Can tolerate difficulty, ambiguity, and conflict without collapsing or avoiding. Takes ownership of outcomes, not just tasks.

Organizational indicators:
→ Makes decisions within authority without seeking validation
→ Engages difficulty and conflict as information rather than threat
→ Owns outcomes – including failures – without defensive displacement
→ Builds capability in others, not just in self

What this stage requires to sustain and deepen: Community — a context in which the mature capacities are exercised in service of something larger than personal advancement.

The puer aeternus failure point: Von Franz documented the pattern in which men remain in an indefinite Stage 2/3 transition — appearing adult in some contexts while remaining adolescent in others. The modern organization often reinforces this by not requiring genuine initiation.

STAGE 3: The Examined Man “Who am I, really — and what does that ask of me now?”

Psychological signature: Has reached the limits of the first adult life strategy and is confronted with the questions that strategy deferred. Midlife is not a crisis of achievement — it is a crisis of meaning. Success has delivered its rewards, and they are not quite enough. The man at this stage must examine what he built, what it cost, and whether it was worth it.

This is the stage of feedback, setback, and shadow. The Examined Man is being asked to receive what he previously deflected — criticism of his blind spots, consequences of his unexamined patterns, the weight of what he has not yet integrated. If navigated successfully, it produces a man who is more honest, more grounded, and more on purpose than the Initiated Man he was. If not navigated, it produces a hardened version of Stage 2: a man who doubles down on his original strategy, rejects feedback, refuses losses, and works harder to prove something that no longer needs proving.

Organizational indicators:

→ Questions whether current role still matches internal identity — may express as restlessness, disillusionment, or apparent loss of drive
→ More sensitive to perceived disrespect or being overlooked — shadow of the need for validation the Initiated Man thought he’d outgrown
→ Either deepening in self-awareness and generosity, or narrowing into defensiveness and control
→ May begin investing more in others’ development — or may become threatened by younger talent

What this stage requires to move forward: Genuine self-examination — not performance of reflection, but the willingness to receive honest feedback, sit with loss, and relinquish the strategies that no longer serve. A guide who has made this passage themselves. And enough psychological safety to explore the questions without needing to resolve them prematurely.

Stage 3 in senior leaders: Often the invisible ceiling in C-suite development. The technically excellent, results-driven executive who has stopped growing — not because he lacks capability, but because the next stage requires a kind of honesty and vulnerability that his success strategy was specifically designed to avoid.

STAGE 4: The Elder “My job now is to create the conditions for others to develop.”

Psychological signature: Personal advancement is no longer the primary organizing motivation. Legacy, mentorship, and institutional contribution become the frame.

Organizational indicators:
→ Spends more energy developing others than advancing self
→ Holds long time horizons — asks what we are building, not just what we are delivering
→ Has integrated enough personal shadow that it does not project into team dynamics
→ Can mentor others through developmental stages without rescuing them

In organizational terms: The Stage 4 leader is the rarest and most valuable resource. Most organizations do not explicitly create the conditions for this development.

Robert Bly — Iron John (1990): initiation and the missing father; how modern societies have eliminated masculine threshold experiences

Michael Gurian — Gurian Institute research on male brain development and organizational application; The Wonder of Boys, Saving Our Sons

James Hollis — Under Saturn’s Shadow (1994); Finding Meaning in the Second Half of Life (2005): Jungian perspective on masculine developmental stages and mid-life passages

Marie-Louise von Franz — Puer Aeternus (1970): the eternal youth pattern; psychological mechanisms of avoidance of adulthood

Carl Jung — Archetypes of masculine development; the shadow and its organizational manifestations

Integration with: Ontological coaching (developmental stages as ontological structures), Jungian depth psychology (shadow and archetype), MKP (ManKind Project) initiation methodology

Diagnostic Application The framework gives HR and leadership teams a developmental language for what they are observing in high-potential men — more precise than “attitude problem” or “not leadership material,” more useful than standard competency assessment.

Program Design Threshold-based development is designed around where in the developmental sequence a cohort is currently stuck, and what experiences are required to move forward.

Individual Coaching The framework provides an individual man with a map of where he is and what the next stage requires — including an honest assessment of what he is avoiding.

Leadership Team Awareness Senior leaders who understand this framework become better at: identifying which of their high-potential men is developmentally stuck, creating appropriate threshold experiences rather than just giving more opportunity, and mentoring rather than rescuing.