Most presentations are built like a story: context, then analysis, then the conclusion at the end. Executives read it backwards, they want the conclusion first, and the story only if they have questions.
This is the single most common reason a well-researched presentation falls flat with senior leadership. The content is fine. The order is wrong. Building up to your recommendation across fifteen slides works when your audience has the patience, and the time, to follow you there. Executives usually have neither, not because they don't care, but because they're triaging a dozen other things in the same hour.
The fix is to invert the structure you'd naturally reach for. Put the recommendation or answer on the first slide, in a single sentence a reader could understand with the sound off. Everything after that exists to support it, not to build toward it.
"Recommendation: delay the launch by two weeks. Reason: integration testing surfaced issues that would create support burden if we ship on time. Ask: sign-off on the new date by Friday."
Everything that follows that slide, the data, the risk analysis, the alternatives you considered, exists as backup, not as the main event. If the room agrees with the recommendation after slide one, you should be able to skip straight to the ask and never open the rest of the deck. That's not a failure of preparation. That's the preparation working.
On slide count and density: fewer slides, less text per slide, than you think you need. A slide with six bullet points and two charts forces the room to choose between reading it and listening to you, most people read, which means you've just competed with your own presentation. One idea per slide, stated as a sentence, not a fragment, keeps the room's attention on you instead of the screen.
Also worth planning for directly: the appendix. Put your detailed data, alternative scenarios, and risk breakdowns in slides at the very end, clearly marked, and only go there if someone asks. This lets you present something tight and confident up front while still having real depth ready the moment someone probes, which, with a sharp executive, they usually will.
One habit to build regardless of format: never read your slides out loud word for word. If the room can read the same sentence you're saying, your voice is redundant, and redundant voices get tuned out fast. Say the sentence they can't get from the slide, the reasoning, the caveat, the thing you'd only know from being close to the work.