Escalate late approvals, open follow-ups, remind reviewers. Every one is ready to run, and you can adjust it in plain language.
Your reviewers see the current asset file in their task, or a clear request to fix a stale link before review.
Your card owner sees a missing review deadline on the campaign card before anyone asks the reviewer to weigh in.
Your campaign owner sees deadline changes beside assets in review, so they can confirm the reviewer still has time.