Most productivity books are secretly about doing more. Better systems, smarter habits, optimised mornings - all in service of fitting more into the same hours. Greg McKeown's Essentialism is a direct challenge to that entire genre.
McKeown's argument is that the productivity crisis most professionals experience is not a failure of efficiency. It is a failure of selection. We have become so skilled at saying yes - to requests, commitments, meetings, initiatives - that we make a millimetre of progress in a million directions and call it a full week. The result is a persistent sense of busyness combined with a nagging feeling that nothing important is actually advancing.
Essentialism is the antidote. It is about the disciplined, systematic pursuit of less but better - fewer commitments, deeper effort, more meaningful progress. For engineering leaders and delivery practitioners drowning in competing priorities, it is one of the most important books available.
Engineering organisations are structurally biased towards more. More features. More projects. More meetings. More stakeholders. More process. The path of least resistance is always to add - and the courage required to subtract is rarely rewarded.
The consequence is teams with too much in flight, leaders who are permanently reactive, and roadmaps that represent the accumulated commitments of every conversation that ever ended with "yes, we can look at that." Nothing moves fast. Quality suffers. People burn out. And yet the organisation continues to add.
McKeown's framework cuts through this directly. An Essentialist is not someone who does less because they are lazy or disengaged. They do less because they have made explicit choices about what matters - and they protect those choices fiercely. For leaders trying to create focus, protect engineering capacity, and deliver meaningful outcomes, the Essentialist mindset is not a personal preference. It is a delivery strategy.
McKeown opens with a counterintuitive observation: the more successful you become, the more options you attract - and the more at risk you are of losing focus. Success creates opportunity. Opportunity creates commitments. Commitments dilute focus. Diluted focus reduces performance. Reduced performance eventually destroys the success that generated the options.
This is the paradox of more, and it affects organisations exactly as it affects individuals. A team that ships one thing brilliantly gets asked to do five things adequately. The reputation for delivery that earned them the trust also earned them the overload.
Map your current commitments against the question: "If I could only pursue one of these this quarter, which would create the most meaningful impact?" Whatever your answer, it tells you something important about whether your current distribution of effort is aligned with your actual priorities.
McKeown introduces the 90% rule: if a potential commitment does not score at least 9 out of 10 on your own criteria of importance, the answer is no. Not "maybe later." Not "we'll find the capacity." No.
The logic is that the difference between a 6 and a 9 feels small but is enormous in practice. A 6 takes the same time as a 9. It competes for the same attention, the same engineering cycles, the same leadership bandwidth. But it produces a fraction of the strategic value - and it crowds out the work that would have scored a 9.
The selective yes only becomes possible when you have clarity about what a 9 looks like. Without that clarity, every request feels equally urgent and equally important, and the default becomes yes because saying no feels uncomfortable.
Before the next planning conversation, write down your explicit criteria for what a 9-out-of-10 priority looks like for your team this quarter. What outcomes would it move? What strategic bets does it support? Apply the criteria to everything already in your backlog.
One of McKeown's most practically challenging insights is that Essentialists create space to think before they commit. Not during the meeting. Not while the request is still warm. Before. They read, reflect, seek out diverse perspectives, and sit with uncertainty - because good selection decisions require more information than is available in the moment a commitment is requested.
In most organisations, this is the first thing to go. Leadership calendars fill completely. Deep work time disappears. The reactive mode becomes permanent. And without the capacity to think, selection defaults to whatever the most recent conversation suggested was important.
Block two hours per week - non-negotiably - for reading, thinking, and reflection. Not email. Not meetings. Not planning. Thinking. Treat it as a delivery commitment to yourself. What you protect time to think about will ultimately shape everything else.
McKeown distinguishes between a life (or career, or work pattern) that has been designed - where your time and energy reflect your genuine values and priorities - and a default life, where they reflect the accumulated weight of other people's priorities, requests, and urgencies.
Most professionals are living a default calendar. Their days are shaped by inbound demands, the expectations of others, and the path of least resistance. The Essentialist makes explicit choices about how to invest their finite time - and then defends those choices.
Look at your calendar for last week. What percentage of your time was spent on work that you would classify as essential - high-impact, aligned with your core priorities? What percentage was default - reactive, obligatory, habitual? What would you need to remove or decline to shift that ratio by 20%?
McKeown challenges the busyness trap directly: the feeling of productivity created by completing many tasks is not the same as the satisfaction created by completing the right things. Clearing an inbox, attending all meetings, and responding to every message produces a sensation of progress that can mask the absence of meaningful advancement.
Essentialists are willing to sit with incompleteness on the unimportant in order to achieve depth on the essential. They accept a level of discomfort - of things undone, of requests unanswered - that non-Essentialists are not willing to tolerate. That discomfort tolerance is itself a competitive advantage.
Identify three recurring commitments in your week that, if you stopped doing them, would create no meaningful negative consequence. Test the hypothesis by stopping one of them for two weeks. If nothing breaks, it was not essential.
"I don't have time" is almost never true. "I haven't decided this is important enough to make time for" is almost always what it actually means. The distinction changes the conversation.
The engineering team with the fewest projects in flight is usually the most productive. Not because they are less ambitious - because they are less distracted.
Every yes is a no to something else. The teams and leaders who understand this make better decisions than those who treat each commitment as independent.
The most dangerous word in an organisation is "also." As in: "We'll do that, and also this." The "also" is where strategy dies.
The Essentialist does not feel guilty about what they are not doing. They have made a deliberate choice that what they are doing is more important. That clarity is itself a form of confidence.
Conduct an honest audit of your current commitments. List everything your team or you personally are committed to. Apply the 90% rule to each. Anything below a 9 needs a plan to exit, deprioritise, or renegotiate.
Create a "not now" list. Every time you are asked to take on something that doesn't meet your 9-out-of-10 criteria, put it on the not-now list rather than the backlog. Review it quarterly. Most of it will never need to return.
Block thinking time this week. Two hours minimum. No agenda, no output expected. Read, reflect, and sit with the hard questions about what actually matters.
Have the ruthless roadmap conversation. In your next planning session, ask: "If we could only deliver two things next quarter, which two would they be?" Then ask: "Why are we committed to anything else?"
Share Essentialism with your leadership team. The individual who becomes more Essentialist in an organisation that rewards more will eventually face friction. The real leverage is when the team adopts the discipline together.
"The Essentialist does not just ask, 'How do I do this more efficiently?' He asks, 'Is this the right thing to be doing at all?'"
- Greg McKeown