> include the value of having people knowing about the business having to explain it to others, who then learn it and can improve it over time?

It's always been difficult to put a number on that value, which is the problem for the MBAs running the show. There's no number on the P&L assigned to tribal knowledge, and improvements that can be made by those with that knowledge and experience within the business.

It's a mistake that businesses keep repeating, over and over again, yet never actually learning the lesson. And now the industry is going to repeat it again, until there's enough pain that they realize that lost value and start rehiring again.