Guinn, Trey: - Trey Guinn, Ph.D., is an active speaker and executive coach, consulting for professionals locally and around the globe. With more than 100 unique client meetings monthly, he has worked with companies including Apple, AT&T, Bain & Company Deloitte, Google, Salesforce and McKinsey. A longtime business communication specialist with the McCombs School of Business at the University of Texas at Austin, Guinn is also a tenured professor and Director of the Communication Arts Department at the University of the Incarnate Word in San Antonio, Texas, and author of numerous academic articles and book chapters.