CBS Stations promotes Matt Naber and Robert Breen to co-heads, advertising sales and operations, succeeding Julio Marenghi, leaving CBS Oct. 1 ... AMC Entertainment promotes Ellen Copaken to senior vice president-marketing, and adds her to its management executive committee, succeeding Eliot Hamlisch, who left AMC ... Streaming Video Technology Alliance adds Viasat Product Manager Dan Newman as new board member ... AuditBoard, cloud-based risk management platform, names Everbridge’s Haibei Wang, also ex-ServiceNow and PayPal, chief development officer ... WeVideo, cloud-based multimedia platform, names former Blackbaud and Anthology executive Kevin Knight CEO ... BrightEdge, organic search, content and digital automation platform, promotes Krish Kumar to CEO; founder and former CEO Jim Yu moves to executive chairman ... Mad Mushroom, indie video game publishing company, names former Activision Blizzard executive Mike Silbowitz CEO ... Tracer, data intelligence platform, adds NewRoad Capital Partners operating partner John Sheehy to its board ... DHI Group, provider of AI-powered career marketplaces, announces resignation of Chief Financial Officer Kevin Bostick, effective Sept. 1, remaining consultant until Dec. 31 ... Early Warning Services, fraud and payment solutions provider, names BMO Financial Group’s Cameron Fowler CEO, effective Oct. 2.