Pair assets with briefs, check versions, carry revision notes. Every one is ready to run, and you can adjust it in plain language.
Tie each page proof decision to the PDF version reviewed.
Your proof tasks show who decided, which file version they reviewed, and who takes the next step.
Assign page proof corrections to the original maker, one task per fix.
Your maker gets clear fix subtasks tied to the proof the reviewer saw, so the next round starts with the right version.