Koletas, an early pioneer of digital ABM, seeks to define the SSG vision and grow the company to full maturity.  Selling Simplified Group, Inc. (SSG), a global leader in intelligent B2B demand gen, announced today the appointment of Thomas Koletas as Chief Growth Officer.  Koletas brings more than 20 years of experience aligning sales, marketing, customer success, and product teams in both SaaS and MaaS startups.  Most notably, Koletas served…