Evolution of Teams – The 5 Stages of Team Evolution

Barry Trailer

Barry is co-founder of Sales Mastery, a sales research and advisory firm focused on AI-for-Sales solutions and Sales as a Profession. His 40 years of sales and sales management expertise including co-founder of CSO Insights, (acquired by Miller Heiman/Korn+Ferry), president of Miller Heiman, and president of Goldmine software. Barry has researched thousands of companies, and coached advisory clients to successfully transform their sales organizations. He has a rich background and proficiency in all things B2B sales and brings this expertise to advisory services clients, sellers, and sales leaders through speaking engagements (pre-COVID), articles, videos, social posts, and more. He is currently an author/adviser to CustomerThink.com. He has written for numerous publications and has been twice published in the Harvard Business Review and was twice a keynote for HBR’s Warsaw Sales Summit.