In the second case study, what is something that Ken and Tiffany Alvarez could have done to prevent Ben Anderson's potentially fraudulent activity?

Make more personal visits to each of the districts to stay in touch with what's happening with their managers.

Implement better controls at the district level rather than allowing each district to be so independent.

Given enough stress, people will find a way to commit potential fraud, so there's nothing Ken and Tiffany could have done.

Hire private detectives to investigate all district managers on a regular, periodic basis.