Most leaders are not short of input. They have data, opinions, meeting notes, strategy decks, and a steady inflow of other people's thinking. What they often lack is clarity: the ability to look at a decision whole, understand what it actually involves, and articulate why one path is better than another.
This gap between information and clarity is where leadership gets hard. Planning sessions, strategy retreats, and frameworks all try to address it. They help, but what most of them treat is the output: the plan, the slide, the decision record. What they don't address is the thinking underneath.
Writing addresses the thinking underneath.
Not writing as communication. Not polished memos or leadership updates. Writing as a practice; the disciplined act of putting your thinking onto a page and finding out what works and what doesn't.
Writing Forces Specificity
Vague strategy survives in conversation. In a meeting, you can gesture toward an idea and people will nod. They leave with different interpretations, and that's fine for now because nothing requires precision yet. The vagueness is invisible.
Write the strategy down, and the vagueness becomes immediately visible.
The act of putting words on a page forces you to choose. You can't write "we'll focus on high-value customers" without confronting the obvious next question: which ones, defined how, and what does "focus" actually require us to do differently?
This is why decision memos are worth the time. When you write out the trade-offs in a decision - what you're choosing, what you're giving up, what assumptions you're making - you often find that the right answer becomes apparent, because you've had to be specific enough to actually see the decision; you've had to name the assumptions rather than leave them floating.
The same applies to strategy. A quarterly goal that can be described in a sentence - without qualifiers, without "it depends" - is a goal that's actually been decided. One that takes three paragraphs and still leaves things open isn't strategy, it's just intent.
This is the core insight from the study of constraints in creative practice: form doesn't limit thinking; it enables it. The act of writing within a structure - a decision brief, a one-page strategy summary, a reflective memo - doesn't restrict your options. It forces you to do the work of choosing between them. The constraint is the point.
If your strategy sounds coherent in a meeting but falls apart when written down, writing hasn't failed you - it's done its job.
Exposing Weak Thinking
Speed is not inherently good in leadership. Fast bad decisions compound faster than slow good ones. The problem is that urgency feels productive. Moving quickly, calling things, keeping momentum - these feel like leadership. And sometimes they are.
But urgency and clarity are not the same thing. Often, urgency is what happens when you've been avoiding a decision long enough that it's become a crisis. The speed at that point is not a feature; it's the cost of having not done the thinking earlier.
Writing slows you down.
When you take time to write out a decision before a meeting, things happen. You find the assumption you hadn't considered. You notice the two priorities that are actually in tension. You catch the dependency you'd glossed over. Writing is where you find these things while you can still do something about it.
The underlying idea of the Zen principle of Ichigyo-zanmai – full absorption in one practice – is relevant here: that doing one thing with complete attention produces a quality of result that divided attention cannot. Writing is, by nature, an act of singular focus. You cannot write and half-think at the same time. The thought has to be whole enough to become a sentence.
There's a practical version of this for anyone who leads a team. A leader who writes out quarterly priorities before the planning meeting will catch the contradictions before the team is in the room. A leader who writes their thinking after a key decision will notice what they actually decided and why (which is often different from what they think they decided).
The investment is thirty minutes in return for decisions that don't need to be revisited because the foundation was weak.
Writing as Discipline
Writing is not a one-off. The value accumulates through practice; not because each individual piece of writing is necessarily profound, but because the act of regular writing changes how you think.
This is what a typical writing practice looks could like for a leader. Not journaling, not creative writing, not a personal blog. Something more functional:
Daily: A decision log. When something significant happens – a choice made, a direction shifted, a new constraint introduced – you write it down. Two minutes. What changed, and what you did about it. Not for the record. For your own clarity.
Weekly: A strategy review. Not what happened this week, but what changed in your thinking. What assumptions shifted? What did you learn that you didn't know on Monday? What needs testing? Twenty to thirty minutes. You're not producing an artefact. You're processing the week.
Quarterly: A reflection. What did you set out to do, what actually happened, and what does that tell you about how you think? This one needs an hour, maybe two because you're updating your model of the situation, not just recording it.
None of this requires writing talent; it requires showing up. The discipline is the practice of thinking, with writing as the medium. What you write does not need to be good, but it needs to be honest.
The Zen concept, again: it's not the brilliance of any single session that matters. It's the regularity. The practice of progress, to borrow a phrase from a different discipline, is not about breakthrough moments. It's about the daily act of showing up and nudging the work forward, even when the result feels inconclusive.
Regularity does something to thinking. It lowers the activation energy. The fifteenth time you sit down to think through a decision in writing, you're faster and more accurate than you were on the first. The habit of clear thinking becomes, eventually, the texture of how you think.
Readiness Without Forcing
This should not drift into obligation – something to be done on schedule whether or not you have anything to say. That's not what this is.
The more useful framing is readiness. A leader who writes regularly is not just practicing; they're keeping themselves in a state of preparedness – ready to capture thinking when it arrives, rather than hoping to reconstruct it later.
Insights don't arrive on schedule. Clarity often arrives at an unexpected moment: in the middle of another conversation, on a walk, in the pause between two meetings. If you're not in the habit of capturing thinking, those moments evaporate, because there was nowhere for it to land.
Readiness is a small thing. A notebook. A voice memo app. A document that lives open on your desktop. The friction between a thought and the page doesn't need to be large before ideas begin to escape. Reducing that friction is part of the discipline.
Most of what you capture will go nowhere useful. That's fine. Capturing an idea is not a commitment to pursue it. It's an act of attention; a way of saying, "this thought was worth noting". The habit keeps the channel open.
The cost of not capturing is invisible: you never know what you didn't think through. Good thinking that was never written down is, eventually, thinking that has to happen twice. Usually under more pressure the second time.
Starting the Practice
Three concrete first steps.
Pick a cadence. Daily decision capture, a weekly review, or both. Start with one. A weekly thirty-minute review is enough to begin.
Choose a format. A decision brief. A reflective memo. A structured journal. The format doesn't matter much; the structure does. Something with a beginning and an end, not an open stream of consciousness.
Show up consistently. Not when you have something interesting to say. On schedule. The value is in the habit, not in any individual entry.
What changes when you make this a practice, consistently, over months:
- Decisions feel more solid. You can explain why you chose what you chose – not just to others, but to yourself. When the decision is revisited six months later, you have a record of the reasoning, not just the outcome.
- Strategy stays coherent. Because you're writing regularly, you catch drift earlier. You notice when the team has reinterpreted a priority, or when a core assumption has shifted without anyone acknowledging it.
- Leadership gets slightly less lonely. Writing surfaces thinking that would otherwise stay private. Once it's on the page, some of it becomes speakable – decisions that felt murky become articulable, questions that felt unprofessional become legitimate.
At Mantage, the writing practice runs across multiple formats and audiences – a professional article each week, alongside other pieces written for different purposes and registers. They're different in voice, audience, and structure. The discipline underneath is identical: showing up regularly, writing to clarify thinking, not waiting until the thinking is perfect. Your version doesn't need to match that cadence; do whatever works for you.
Writing won't make you faster. It will make you clearer. In strategy, operations, and leadership, clarity is the leverage point.
That's where to start.
Ady Coles works as a thinking partner and mentor to leaders and teams navigating complexity. His work centres on judgement, perspective, and the often-invisible work of translation - helping people understand their role in the system, make better decisions, and operate with confidence in uncertain environments.