Push the queries sitting on page two before writing anything new
Position 11–20 with impressions is a page Google already half-trusts. Exact query in the title, H1 and first hundred words, then three internal links to it. An afternoon, and cheaper than any new page.
Step 3.8.6.5
Time: 2h
Done when
For each query you pushed, give its average position with Search Console filtered to that exact query AND that exact page, from before the change and from at least four weeks after. An average across all queries or all pages does not count: it mixes rankings that have nothing to do with each other. (Proof: a list of the items.)