I'm Matt McDarby, a professional sales leader, coach, and author of three books on sales leadership, The Cadence of Excellence: Key Habits of Effective Sales Managers; The Ultimate Differentiator: The Sales Manager's Guide to Talent Development; and my latest book, The Divine Comedy of Sales: The Sales Manager's Guide to Virtuous Leadership. I built a business in January 2010 when I noticed an under-served need -- training, coaching, and developing sales managers. Sales managers serve in the pivotal role in any business, and I attacked the opportunity to serve and develop them by starting my sales leadership coaching and advisory services company, United Sales Resources. For more than a decade, I have coached and developed sales management teams in small, middle market, and large B2B sales organizations.