Check purchase facts, compare invoices, request missing proof. Every one is ready to run, and you can adjust it in plain language.
Put the current proof revision and reviewer due date on each task.
Your review tasks show the current image revision and reviewer due date, so the next handoff is clear.
Flag older artwork links before visual proof reviews.
Your reviewers see whether a task links to the latest file, with the newer link in a comment when the task points to an old draft.