Mary Poppen President & COO, HRIZONS Mary Poppen is President and Chief Customer Officer of HRIZONS Employee Experience and Professor of Practice at Michigan State University, teaching in the Customer Experience Management (CXM) Master’s Degree program. She is also a CS Angel investor. Mary has experience building world-class teams and processes for early startups including SuccessFactors, Glint and Involve.ai, as well as large organizations including SAP and LinkedIn. She is also the author of a book entitled