Knight Foundation President Alberto Ibarguen says he will retire upon the appointment of a successor … Content delivery platform Edgio names NBC Universal’s Eric Black chief technology officer/general manager-media ... Meadowgate Technologies, IT provider to national security customers, hires Tom Lash, former Amazon Web Services general manager-national security and federal delivery, as CEO ... Cybersecurity firm Electrosoft Services names retired Army Chief Warrant Officer Wes Postol senior vice president-business development ... Divergent Technologies, industrial digital manufacturing company, adds former Joint Chiefs of Staff Chairman Peter Pace to its board.