FCC staff changes: Wireless Bureau’s Jessica Campbell becomes acting legal adviser-public safety for Commissioner Anna Gomez, stepping in for Hayley Steffen, on maternity leave, and Cierra Nokes, ex-NTT Data, joins Gomez’s office as executive assistant; Howard Parnell retiring as division chief-Web and Print Publishing; Enforcement Bureau Chief Loyaan Egal becomes special adviser, with Deputy Bureau Chief Peter Hyun becoming acting bureau chief; Office of Economics and Analytics Deputy Bureau Chief Catherine Matraves becoming acting bureau chief with Bureau Chief Giulia McHenry’s departure … Cloud security provider Sysdig appoints William Welch, previously Talkdesk, as CEO.