Liberty Global promotes Severina Pascu to senior vice president-commercial and operations, newly created role ... True Wind Capital, private investment firm for tech companies, hires HMI Capital Management’s Emily Brakebill as partner and head-investor relations ... Somnee, smart sleep wearables company, taps Tim Rosa, former Fitbit chief marketing officer, as CEO ... Cyber Defense Group hires Gus Anagnos, former chief information security officer at the University of Southern California, as chief operating officer.