Oh, and one other thing: Peter Drucker never drew a four-box matrix in his entire life.

FORBES: How to Consult Like Peter Drucker

The book is especially obtuse when Koch describes his system for grading employees, a four-box "virtue and talents matrix" that balances "values and beliefs" against the skills needed to run the business.

FORBES: Koch's Laws

One way to do that is with the classic comparison matrix, originated by the Boston Consulting Group, of four quadrants, charting values along the x- and y-axes.

FORBES: Paul Ryan: Criticize and Propose