Openings and New Hires at Groupon, Rocket Fuel, and Xaxis

Every two weeks, Geoff Michener covers some of the latest job changes taking place in this dynamic industry. In this week’s column, Groupon appoints another new CEO, Xaxis spinoff Light Reaction gains a vice president of global operations, and programmatic leader Rocket Fuel adds political veterans in anticipation of new online ad spending for the 2016 election cycle.