board chair; Kristopher Jones, Fox executive vice president and head-government relations, appointed to the designated TV network seat on NAB board's executive committee ... Warner Bros. Discovery announces immediate departure of Chris Licht as CNN Worldwide chairman-CEO; "interim leadership team" installed until Licht’s replacement is found includes Amy Entelis, executive vice president-talent and content development; Virginia Moseley, executive vice president-editorial; Eric Sherling, executive vice president-U.S. programming; and Chief Operating Officer David Leavy ... Comtech adds former Under Secretary of Defense Ellen Lord and former U.S. Army Chief Information Officer Bruce Crawford to its board, expanding it to nine members ... BullseyeEngagement, supplier of cloud-based human capital management software, adds Margaret Lazo, former Univision Communications chief human resources officer, to its advisory board ... Cybersecurity company Deep Instinct names Zscaler’s Jim Ortbals vice president-Americas channels and Zimperium’s Ryan Vaupel vice president-operations ... ECI, cybersecurity services company, hires Avertium’s Jeff Schmidt, also former British Telecom, as president-CEO; outgoing CEO David Andrade will be a consultant during transition ... Tech consultancy Thoughtworks promotes Rachel Laycock to chief technology officer, succeeding Rebecca Parsons, who becomes CTO emerita, and promotes Mike Mason to chief AI officer, reporting to Laycock.