You called the meeting to make a decision. You built a deck: clean, twelve slides, one idea per slide, the recommendation on slide ten. You walked the room through it. Heads nodded. Someone said it looked great. You left with the meeting marked done.
Then the decision didn’t hold. A week later the same questions came back, from the same people who nodded. The thing you thought was settled turns out to have been agreed to by everyone and understood by no two people the same way.
You didn’t make a decision in that room. You gave a presentation. A presentation is not a decision.
What a deck does to an argument
Here is what a deck actually does. It breaks an argument into fragments and removes the connective tissue that made it an argument in the first place.
A slide holds assertions. “Enterprise is the priority.” “Margins support the shift.” “Competitors are moving.” Three claims on three slides, each true-sounding, none of them showing why the first follows from the other two. The logic that connects them, the reasoning, the because, lives only in your mouth as you narrate. It is never on the page. And the moment the meeting ends, it’s gone. What survives is the deck: a set of disconnected claims that any two readers will reassemble into two different arguments.
This is not a formatting problem. It’s the format doing exactly what it was built to do. Bullets exist to compress, and compression is the enemy of an argument, because the argument is precisely the part you can’t compress: the chain of reasoning from evidence to conclusion. A slide that reads “Margins support the shift” has deleted the analysis that would let anyone disagree with it. So no one disagrees. Not because they’re convinced. Because there is nothing on the slide to disagree with. The deck manufactures the look of alignment by hiding the thing people would have fought about.
And it lets you off the hook too. This is the uncomfortable part. A deck lets you present a decision without having fully made it. You gesture at a recommendation, keep three option slides in your back pocket, and read the room before committing. If it leans one way, you lean on the slides that agree. You never had to write the sentence: “I recommend X, here is the case, and here is what we give up to do it.” The deck let you avoid that sentence. That is usually why you reached for it.
Write the memo instead
The fix is old and boring and works. For a decision that matters, write a memo. Not slides. Prose. Full sentences, in paragraphs, making the actual argument front to back.
A decision memo does what a deck structurally cannot. It puts the recommendation in the first paragraph, so no one is guessing what you’re asking for. Then it makes the case in connected prose: here is the situation, here is the reasoning, here is the evidence, here is where the reasoning is weakest. It names the tradeoff out loud: what you are choosing notto do, what you are willing to be worse at. It states the alternatives you considered and why you rejected them, the part decks always omit and boards always need. Then it ends with the specific ask.
The discipline is in the sentences. You cannot write “margins support the shift” as a paragraph without writing the because: the actual analysis, the assumption it rests on, the case where it fails. Prose has nowhere to hide. A weak argument that looks authoritative as a bullet looks weak as a paragraph, because the paragraph has to show its work.
To feel it, take one bullet and try to make it a paragraph. “Sunset the legacy product.” As a bullet, it’s a decision that sounds made. Now write the paragraph. You have to say by when, and what happens to the customers still on it, and who owns the migration, and what revenue you’re walking away from this year to save the engineering cost next year. And the moment you write that last clause, you notice you haven’t actually decided whether that trade is worth it. The bullet let you skip the trade. The paragraph made you take it. Multiply that across twelve slides and you can see how a room of competent people “decides” something none of them has thought through to the end.
Writing the memo is how you find out whether you have a decision or just a preference with good production values. If you can’t write it in prose, you don’t have a decision yet. You have a vibe with a logo on it.
Then run the meeting differently
Send the memo in advance and expect no one read it. So don’t rely on that. Open the meeting by having everyone read it in silence. Ten minutes, in the room, no phones. It feels strange the first time, and it is the most productive ten minutes of silence you will ever schedule. Then discuss.
What changes is the quality of the disagreement. Because the full argument is now on the page (the reasoning, the tradeoff, the rejected alternatives), people engage with the decision instead of with your delivery. They can point at the paragraph where they think the logic breaks. They can see the assumption you’re making and challenge it. The objection that would have surfaced three weeks later, sideways, surfaces now, in the room, where you can deal with it. You’ve traded a comfortable meeting for an uncomfortable one, which is the trade every real decision requires.
There’s a governance point underneath this that anyone who has sat through a real board review knows. The written record is the control. A decision made off a deck leaves no honest trace, because the deck doesn’t hold the reasoning. Six months later, when it’s unclear why the call was made, there’s nothing to return to but divergent memories. A decision made off a memo leaves the argument itself on the record. You can see what you knew, what you assumed, and what you chose. That isn’t bureaucracy. It’s the difference between an organization that can learn from its decisions and one that merely has them.
The move
For the next decision that actually matters: ban the deck. Write two pages of prose instead. First paragraph, what you recommend. Then the reasoning, in sentences that show the because. Then the one tradeoff you’re accepting and the strongest alternative you’re rejecting, with the reason. Then the ask.
Read it back and find the paragraph you had to fudge: the one where the sentence wouldn’t come because the logic isn’t there yet. That paragraph is the actual decision. It’s the part the deck would have let you skip.
The deck isn’t the enemy. It’s a fine tool for informing people who don’t have to decide anything. But somewhere it became the default container for decisions too, and it is the wrong container, because it was designed to move smoothly through a room, not to hold an argument still long enough to test it.
A deck is built to be presented. A decision has to be written down, because writing is the only form of thinking that won’t let you skip the hard part.
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Making High-Quality Decisions Under Uncertainty.
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