Not all strongly adverse events require outside agency intervention – by first responders, say.
In these cases, your organization would cede site control to an outside commander until the public is safe.
In instances without public safety consequences, you and your colleagues will be – must be – ready immediately to manage the crisis and recover. If you have well designed, tried, and maintained plans in place, you have a strong chance to bring the best feasible results.
Survival of the organization will be in the hands of FM and your colleagues from partner departments, business units, and providers.