There is a leader inside every organisation we work in who looks fine on the org chart and is in trouble underneath it. They are usually somewhere between forty and the end of their executive arc. They are carrying the team. They are also carrying teenagers, ageing parents, and the cumulative residue of twenty years of saying yes. They are competent. They are tired. And the operating model that got them to this seat is quietly draining them in it.
Most commentary on this cohort stops at the demographics — sandwich generation, ageing workforce, retention risk. The useful question is operational: what is the operating model that lets a senior leader keep producing their best work when the load on both sides of work has stepped up? Because the model that worked at thirty-five does not work at fifty — and the research now makes it clear it shouldn't have to.
The myth this stage is built on
The default cultural story about leaders past forty is decline. Matt and Susan spent two years interrogating that story for their book Winning the Second Half — and what they landed on is the opposite. The second half is not the slow fade of a single curve. It is the rise of a different one. The capabilities that matter most in senior leadership — judgement under pressure, the ability to read a room, the ability to hold complexity without being destabilised by it — are sharper in the second half than the first. The body changes. The leadership capacity, when it is invested in, compounds.
Susan draws on Carl Jung's framing in the book — life as a daily cycle, where the morning is youth, lunchtime is midlife, and the afternoon and evening are their own distinct chapters with their own gifts. The mistake most organisations make is treating the second half as the same operating model with less battery. The book makes a sharper case: it is a different model, with its own playbook, and the leaders (and organisations) who name it early move through it with momentum rather than reluctance.
In the first half of my leadership life, I just thought — suck it up and carry on. The second-half model is the opposite. You become an expert in yourself, and then you lead from that. That's the whole reason Susan and I wrote the book — most people are running the wrong operating model into the most important chapter of their leadership.
Recovery is the work, not the reward
If the cognitive and emotional capacity is there, why do we see so many second-half leaders looking depleted? The answer is the third strand of research: allostatic load. Bruce McEwen's foundational work at Rockefeller showed that chronic exposure to stress without adequate recovery doesn't just feel bad — it physically degrades the systems the brain uses to regulate, decide, and lead. Recovery is not the absence of work. It is the active process that prevents the system overloading in the first place.
Treated as a daily practice, recovery is what makes the next decision, the next conversation and the next quarter possible. Treated as an annual event, it is damage control. The senior leaders we see keep producing their best work are the ones who have stopped saving recovery for the holidays and built it into the operating week — calendar-level micro-practices, not heroics.
Our body is a living system. Energy moves in phases. The mistake is treating the depleted phases as failure. They are signal — they tell you where to invest. And if you invest in your own state with the same intent you invest in the business, the second half is when you do the best work of your career.
What this means for the people who sponsor these leaders
If you are a CEO, an HRD, or a chair sitting with a senior bench that is competent and quietly fatigued, the implication of this work is not a wellbeing program. It is an operating shift you sponsor explicitly. Three structural moves do most of the work.
- Name the shift: Stop treating the move from first-half to second-half leadership as a personal life event the leader sorts out alone. Name it as an organisational transition with a defined operating model, and resource the development that supports it. Leaders who are told this is a recognised stage with a recognised playbook move through it faster and with less collateral damage.
- Build recovery into the rhythm: Calendar-level practices, not annual offsites. Protected windows for thinking. A standing expectation that senior leaders model micro-recovery rather than heroics. The organisations that get this right do not lose productivity — they lose noise.
- Coach state regulation as a competency: Treat the ability to lead from a clear, regulated state under pressure as a trainable executive skill, the same way you treat strategy or finance. It is not soft. It is the single biggest determinant of how a senior leader actually performs in the two seconds before they speak in a meeting that matters.
The cost of not naming this shift is the quiet attrition of the people you can least afford to lose — at exactly the moment the research says they are best equipped to lead.