A shift is happening at the top of Australia’s Defence leadership, and it says more about capability than representation.
Because if you look at the numbers, Defence still isn’t balanced. Women make up only around one in five members of the Australian Defence Force, yet we’re now seeing women step into some of the most senior and influential roles across Defence, including Lieutenant General Susan Coyle appointment as Chief of Army, followed by Anthony Albanese recommending Meghan Quinn PSM as the next Secretary of the Department of Defence.
This isn’t about a system that has “solved” diversity. It hasn’t. It’s about a system that is under pressure and, in response, is starting to change how it defines leadership.
Defence is operating in an environment that is more complex, more technical and more constrained than ever before. Workforce shortages are well documented. The nature of capability has shifted, with increasing reliance on cyber, intelligence and systems thinking alongside traditional operational roles. The profile of what makes an effective leader is evolving, whether the institution deliberately set out to change it or not.
For a long time, leadership pathways in Defence were relatively narrow. Certain roles, experiences and career trajectories were more likely to lead to senior positions. That’s not unique to Defence, it’s how most institutions have historically operated. But those pathways were built around a different set of demands and what we’re seeing now is what happens when those demands change.
The criteria for leadership becomes less about familiarity and more about fit for purpose. When you start asking; what does this role actually require, what kind of thinking, experience and capability is actually needed to deliver in this environment, the answer doesn’t look like it used to.
And that’s where the broader conversation around diversity often loses its footing.
For years, organisations have approached diversity as something to be achieved. A target to work towards. A metric to report against. A signal of progress. Now, don’t get me wrong, those efforts still have value and open the floor for many important conversations, but they can also create a dynamic where diversity is seen as separate from performance, rather than a reflection of it.
What Defence is showing, intentionally or not, is a different way of looking at it.
When capability becomes the primary filter, the conversation changes. The focus shifts to what the organisation needs from its leaders, rather than who has traditionally held those roles. And when that happens, the range of people who meet those criteria broadens.
Not because the organisation sets out to diversify its leadership, but because it removed some of the constraints that were limiting how capability was being recognised.
Diversity, in that context, is not the objective. It is the outcome.
That doesn’t mean the work is done, or that structural barriers no longer exist. They do, and they require deliberate effort to address. But it does suggest that the most sustainable shifts happen when organisations rethink how they define and identify capability in the first place.
What’s happening in Defence is not isolated. It’s just more visible because of the nature of the institution and the level of scrutiny it operates under.
Across industries, organisations are facing similar pressures. Talent pools are tighter. Problems are more complex. The pace of change is higher. And yet, many are still relying on legacy definitions of leadership that were built for a different environment.
And that’s where the real opportunity sits. Not in asking how to increase diversity as a standalone goal, but in asking whether the current definition of leadership is still fit for purpose. Whether it reflects the capabilities the organisation actually needs to succeed. And whether it allows those capabilities to be seen, developed and elevated, wherever they exist.
Because when that alignment starts to happen, the outcomes tend to follow.
The shift in Australia’s Defence leadership is a signal of that. Not a finished state, but a direction of travel.
And for organisations paying attention, it raises a more useful question than most diversity conversations tend to: If capability was truly the only filter, would your leadership team look the same as it does today?




