If the blog promises expertise it cannot demonstrate, start by preserving one representative example. It gives the investigation a concrete reference and makes the eventual correction easier to judge.
Find the likely cause
Positioning is broader than available experience.
Treat this as an explanation to verify against the actual work. Look at the input, the relevant decision, and the final result together. If the evidence does not support this diagnosis, investigate the mismatch before applying a convenient but unrelated fix.
Make the targeted correction
Narrow the scope to topics with credible inputs and examples.
An editorial position makes a publication useful by choosing which reader problems it will cover with particular care.
Check that the repair worked
Check that claims of expertise are supported by visible substance.
Repeat the check on the final version that the reader or customer will encounter. An approved draft, a preview, and a published result can differ; the acceptance decision should concern the version people actually use.
Prevent the next related failure
A separate issue to watch for is this: the blog covers everything and stands for nothing. Write a clear editorial promise and use it to screen new ideas.
Monitor the useful outcome
Track returning readers, useful responses, and the share of published pieces that fulfill the editorial promise.
Keep a short record of the original symptom, the evidence behind the diagnosis, and the result of the acceptance check. That record makes the solution reusable when the same condition appears again, without assuming that every superficially similar problem has the same cause.