Flag changed purchases, compare promotion pay. Every one is ready to run, and you can adjust it in plain language.
Bring the new proof and earlier fixes into one reviewer handoff.
Your reviewer can find the new proof beside the earlier version and the fixes still open, right on the task.
Keep each proof's open review requests visible on its item.
See which requested edits made it into a revised proof and which still need work, right beside the files on your review item.
Flag conflicting proof revisions in creative review handoffs.
Keep proof reviews clear: your coordinator sees conflicting revisions on the issue and can choose which one belongs in review.