Crisis management as of March 2020, in a world-wide effort to combat COVID-19 took on a whole new meaning. Never before in the history of the United States, not even during WWI, WWII or post 9/11, has the US and the world economy simultaneously gone off line.  According to the 2019 PwC Global Crisis Surveythere is a total of 7 broad crisis types and they all happened at the same time.

Source: Crisis Management Post COVID-19 | PGH TechFuse