The M25 is not designed to run at maximum capacity. It is designed to run at around seventy percent of it.
When traffic rises above that threshold, something strange happens. The road stops behaving like a road. A single incident — a breakdown, a minor collision, a spilled load — cascades outward and freezes the entire orbital. Traffic control systems actively slow, batch, and space vehicles to keep the motorway below its capacity ceiling. Not because the road couldn't theoretically hold more cars. Because a road holding its theoretical maximum has lost the one thing it needs most: room to respond.
Work systems behave the same way. And most organisations have forgotten it.
Editor's note — where this sits
This piece sits in the Engine layer of the Idea to Value system — the layer concerned with human creative intelligence applied to work. Where Creativity Is a Climate Problem sets out the five conditions leaders need to design for, this piece zooms in on one of them — Space — and explores what it looks like in practice. A deep-dive Studio video sits at the foot of the page for members.
The Idea to Value system — five layers
Control has a hidden cost
Organisations are built for control. Control of cost. Control of delivery. Control of people, priorities, and risk. None of that is wrong. A business without any control is not a business — it is a group of people with a shared bank account and a vague sense of direction.
But control has a cost, and the cost is usually invisible until something goes wrong.
The tighter the system, the less space there is for anything outside the plan. And almost everything valuable about the people you have hired lives outside the plan. The noticing. The judgement. The quiet observation that something is drifting. The half-formed idea that would save six months of wasted effort if anyone had time to follow it through. The problem that gets seen before it becomes systemic. The small improvement that compounds into something significant over a year.
All of that requires room. And most organisations have optimised the room out of the system.
What slack is actually for
In the Idea to Value system, Space is one of five conditions that allow creativity to flourish — alongside Meaning, Attention, Safety, and Shape. Space, in practice, is slack. Capacity deliberately left unfilled, so the system has room to respond to what it encounters.
Slack is not wasted capacity. That is the misreading most organisations make, and the misreading that costs them the most. Slack is the difference between a system that can only execute and a system that can also learn, adapt, and improve.
Without slack, unexpected problems become crises rather than adjustments. Opportunities go unnoticed because no one has time to look up. Learning gets postponed to a quieter quarter that never arrives. Reflection becomes a luxury. The system can only do the thing it was doing — faster, harder, with more people — until it breaks.
With slack, all of that changes. Problems get absorbed early. Opportunities get spotted and followed. Learning happens as a matter of course rather than as a special event. People have the bandwidth to think about the work, not just do it.
Visual reference — capacity and flow
The engineSlack is not wasted capacity.
Most work systems are run at one hundred percent of their theoretical capacity. At one hundred percent, the system can only execute. Room to respond has been optimised out. Below capacity, the same system can do something fundamentally different — it can notice, adapt, and improve.
System at 100% capacity
Humans act as throughput units.
- Problems become crises
- Opportunities go unnoticed
- Learning is postponed
- Judgement is suppressed
- The system can only execute
System with slack
Humans apply their intelligence.
- Problems absorbed early
- Opportunities get spotted
- Learning is continuous
- Judgement is present
- The system can improve itself
The M25 is not designed to run at maximum capacity. Neither is a work system. At one hundred percent, one incident freezes everything. Traffic control actively slows and spaces vehicles to keep the motorway moving. Delivery systems work the same way.
Creativity is not just art
It helps to be clear about what we mean by creativity, because the word carries a lot of baggage.
Creativity in this context is not about painting, or poetry, or coming up with big ideas in a workshop with coloured sticky notes. It is the full range of human intelligence applied to the work: noticing what is actually happening rather than what the dashboard says, making sense of patterns nobody has named yet, solving the problem that wasn't in the brief, questioning the approach that used to work but no longer does, adding intelligence to a product or service that didn't have it before.
This is what the Engine layer is for. The Physics describes how ideas move through the system. The Engine describes what humans do inside that system to make the movement valuable rather than mechanical. Without it, the system still runs — but it runs empty. Ideas move through the funnel without being improved, challenged, or genuinely made real.
When the system is at full capacity, humans become throughput units. When the system has slack, humans become contributors. That is the real distinction. Slack is the operational mechanism that turns an experienced workforce back into a thinking one.
Creativity is not a quarterly event
Most organisations know this, at some level. They just try to fix it in the wrong way.
The usual response is a scheduled interruption. Innovation week. Hackathon. Quarterly creative sprint. Annual offsite. These are better than nothing — but they misunderstand the problem they are trying to solve. You cannot compress nine months of missed thinking into a three-day window. You cannot summon insight after exhausting everyone who might have had some. You cannot defer creativity to September and expect it to arrive fully formed, with slides.
The people who run these events often know this too. But the logic of control makes anything else feel indulgent. A fortnightly block of protected thinking time looks like slack in a spreadsheet — and slack, in most organisations, is the first thing to be optimised away.
The truth is the opposite. Creative intelligence has to be woven into the everyday fabric of work, not bolted on as an exception. Otherwise it does not exist at all.
Fortnightly blocks — the practice
When I have led teams, I have scheduled fortnightly blocks of protected time for creative problem-solving. Every two weeks, without exception. Not a special event. Not an offsite. Not an innovation sprint that requires HR sign-off. Just a block of time, on the calendar, where the delivery pressure is lifted and the team gets to work on the work itself.
The fortnightly cadence matters. Weekly is too frequent — the delivery pressure never fully lifts, and the time gets eaten by everything that didn't fit into the previous week. Monthly is too rare — by the time the block comes round, whatever needed attention has already become a crisis or been quietly abandoned. Fortnightly is the rhythm that gives the team enough distance to see clearly, and enough frequency to keep the practice alive.
What actually happens in those blocks varies. Some weeks the team uses them to notice things — reviewing what has drifted, what is no longer making sense, what signals have been ignored. Other weeks they are used to reframe a problem that has been solved the same way for too long.
Sometimes they become small experiments — trying a different handover, testing a new ritual, questioning a long-standing assumption. Occasionally something genuinely new gets invented. But more often, the block is used for something simpler and arguably more valuable: thinking about the work rather than doing it.
That is the practice. Protected time. Fortnightly. No agenda imposed from above. The team applies its intelligence to its own work.
The outputs are rarely dramatic. What changes is the rate at which small improvements get made, small problems get caught, and small opportunities get taken. Over a year, the compound effect is significant. Over three years, the team is unrecognisable from one that has been grinding through delivery at full capacity the whole time.
Innovation thrives outside control
The role of leadership in any of this is not to demand creativity or to schedule it. It is to design the conditions where it becomes natural rather than exceptional.
Those conditions are consistent. Space in delivery capacity, so people are not always recovering from the last thing. Time in the cadence, protected from the tyranny of urgent work. Permission to experiment, including permission for experiments to teach rather than succeed. Safety to try things that might not work. Clear edges — the safety condition — that let people know where they must get it right and where they are free to explore.
Over time, this stops being an initiative and becomes a habit of work. Innovation stops feeling scheduled and starts feeling like part of what the team does. Less like a meeting. More like a mindset.
The shift
If everything is controlled, scheduled, and optimised, nothing truly new will emerge. That is not a moral failing of the people inside the system. It is the predictable output of a system that has been built to do one thing very efficiently and nothing else.
The way through is not to demand creativity. It is to stop designing it out of the system.
Make space. Protect it. Return to it. The people you have hired will fill it with exactly what you hired them for.
From the Cultivated library
The Idea to Value System
Field guide + video series · Digital
Making space is one practical expression of the Engine layer — the layer concerned with how human intelligence actually gets applied to work. The full Idea to Value system maps all five layers, shows how they connect, and offers a way of seeing your work that holds up across methods and frameworks.
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