Bluestripe Group and New Digital Age brought together a group of senior sales leaders from the digital advertising industry at the Union Club this month for the first Selling the Sellers roundtable, a companion piece to the long-running Marketing the Marketers series. Where that initiative focused on helping marketers in our industry, this one turned the lens on the sales side of the business, and on the gap that too often opens up between what marketing produces and what sales can actually use