[zhte415]

Succession planning. Disaster recovery planning. We should have these.

Not having them can lead to hasty, unwise decisions. They should include prioritising tasks and cascades/durations of fall over.

There's not necessarily reason they mean dropping anyone either. Even if exclusively looking at a financial impact there are costs of switching, costs that might be low for a server needing restoring to high for acquiring knowledge specific to your field or product, or a whole lot in between, for example.

Just have a plan. If you don't, be aware of potential for flawed decisions made in haste.