NTIA promotes Parul Desai, previously director-Office of Congressional Affairs and FCC, to chief of staff ... Cybersecurity company Sailpoint appoints Gary Nafus, ex-Microsoft, as chief sales officer and promotes Matt Mills to president ... Connectivity provider Lightpath appoints Rachel Stack, ex-Cologix, as chief financial officer ... Josh Finke, ex-Compucom, joins IT company Lumen Technologies as senior vice president-public sector ... Charter communications names Simon Cassels, ex-GoodRx, as senior vice president-chief creative officer ... Network application programming interface platform Shabodi adds SineWave Ventures’ Nikesh Kalra, Henna Business Services’ Asha Keddy, and Tony Thelen, ex-John Deere, to board.