DAVE STEIN is a sales consultant and strategist whose expertise has been featured in Fast Company, BusinessWeek, Inc., The Wall Street Journal, Fortune, and Forbes. He is an advisor to Sales and Ma...lihat lebih banyakDAVE STEIN is a sales consultant and strategist whose expertise has been featured in Fast Company, BusinessWeek, Inc., The Wall Street Journal, Fortune, and Forbes. He is an advisor to Sales and Marketing Management magazine.lihat lebih sedikit