If one memorable interview drives the whole campaign, 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
A vivid story is mistaken for a pattern.
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
Label the story as an individual case and seek contrasting interviews.
Interview analysis becomes useful when quotes, interpretations, and proposed actions remain distinguishable.
Check that the repair worked
Keep the campaign hypothesis provisional until multiple observations support it.
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: aI interview summaries invent customer quotations. Keep verbatim quotes in a separate field with transcript locations.
Monitor the useful outcome
Measure the share of messaging decisions supported by traceable quotes, and review whether new inquiries fit the intended audience.
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.