This is John J. Kerin. And as I describe in the book, he was straight out of central casting. Kerin was the manager at Marcus & Millichap when I started out in the Los Angeles office, and eventually became the CEO. As Machiavelli said, it's better to be feared, then loved. Kerin optimized that maxim.
This is Ronald L. Kotick. Similar to Kerin in his brute force mentality, many brokers learned a lot from Kotick at Marcus & Millichap, including myself. Kotick spent 7 years in the minor leagues before becoming a sales guy, which fit him perfectly.