A contingency plan proves its value when conditions change, but that is not the time to begin writing it. I see discussing likely obstacles early as a way of protecting the team’s ability to make considered decisions.
Do not try to catalogue every possibility
I start with the few dependencies capable of stopping the campaign: product delivery, verified information, creator availability or final approval. A minor inconvenience and a publication-blocking condition should not carry the same priority.
For each one, I identify a clear trigger. The product must arrive by a certain date to preserve the filming window is more useful than delays may happen. It establishes when a decision is needed.
An alternative still needs permission and accuracy
Using an older video may be an option, but its facts and usage conditions need checking. A replacement creator cannot automatically be expected to accept an identical scope either.
Other options include postponing publication, reducing the planned output or directing people to an existing explanation. Each should still serve the campaign’s purpose. Publishing unrelated material merely to fill an empty slot may solve nothing.
Name the decision owners
Having everyone express an opinion at once does not necessarily speed up a response. Identify who can approve a change, who informs the creator and where the shared record is updated.
The multi-creator calendar should make those connections visible. A change to one post may affect advertising, website information or other collaborations, and those dependencies need their own review.
Run a small rehearsal
A fictional scenario is enough: the product is two days late, the final approver is unavailable and publication is scheduled for tomorrow. Who makes the first call? What pauses? What information is communicated externally? Unclear answers reveal where the plan still needs work.
I prefer a contingency plan that describes a reasonable, shared range of options rather than a hidden rescue document. Its purpose is not to promise that nothing will go wrong, but to help everyone respond honestly and consistently when something does.