Jack QuarlesJack Quarles is the founder of Buying Excellence® and the author of Amazon #1 Bestseller "How Smart Companies Save Money." Over the last 15 years Jack has helped dozens of organizations make better buying decisions and save tens of millions of dollar. As Director of Corporate Procurement at Sallie Mae, Jack led sourcing initiatives for software, services, and information central to the company's core business. As a founding principal of Invoice Insight (later renamed Xigo), Jack implemented software and BPO solutions with Fortune 500, federal, and state government clients. He has worked on cost reduction project teams with Accenture, Bridge Strategy, Mercer Management Consulting, and McKinsey. Read More Read Less