Search intent decides the whole structure
Two articles on the same topic need completely different outlines depending on what the searcher wants. Someone searching "what is a CRM" wants a definition and a mental model. Someone searching "best CRM for small business" wants a comparison and a recommendation. Same subject, different article.
This is the most common reason good writing fails to rank. The article answers a question the searcher did not ask, so it gets impressions and no clicks, or clicks and immediate bounces.
Set the intent correctly and the structure follows. Informational intent wants explanation and examples. Commercial intent wants comparison tables and honest trade-offs. Transactional intent wants to remove friction and get out of the way.
Why each section needs a stated job
Most outlines are a list of headings. That is not enough to write from, because a heading does not tell you what the section must accomplish or when it is finished.
Every section in the generated outline comes with one line describing what it has to deliver and what element it needs, whether that is a table, a checklist, an example or a comparison. That turns the outline into something you can draft against rather than stare at.
It also exposes padding early. If a section has no clear job, it is usually filler, and cutting it before you write it saves the most time.
Working with the keyword set
The primary keyword goes in the title, the H1, the introduction and at least one H2. That is roughly the whole discipline. Keyword density as a metric has been dead for years; what matters is that the page is unambiguously about the topic.
The secondary and long-tail keywords are more useful. Each one is a section you could write, or a question you should answer somewhere on the page. Long-tail terms are where new sites actually rank, because the competition is thinner and the intent is sharper.
Use the long-tail list to decide what to write next. If one term has clear search intent and you can answer it well, that is a better second article than another broad piece on the same topic.
On the introduction and meta description
The generated introduction is 120 to 150 words and deliberately avoids the standard throat-clearing. "In today's fast-paced world" and definitions of things the reader already knows are the two most reliable ways to lose someone in the first five seconds.
The meta description is not a ranking factor, but it is the ad copy for your result. Google rewrites it roughly half the time, and when it does not, a well-written 155-character description measurably improves click-through. Treat it as copy, not as a summary.