Jaydee Griffith, previously NTIA, joins ATIS as managing director-Next G Alliance; David Young moves to vice president-technology policy and government relations ... SAP Chief Revenue Officer Scott Russell and Chief Marketing and Solutions Officer Julia White leaving company and executive board, effective Aug. 31; CEO Christian Klein fills Russell’s position in interim, White’s position to be dissolved ... Dual-screen TV company Telly appoints SpotX co-founder and ex-CEO Mike Shehan chief revenue officer ... Cybersecurity company Cyware names Terrence Driscoll, ex-JP Morgan Chase, chief information security officer ... Zehra Akbar, previously Skygrid, joins AI startup Imandra as COO ... Leidos promotes Ron Keesing to chief AI officer ... Chinese carrier- and cloud-neutral internet data center services provider VNET Group appoints David Lifeng Chen, Hongshan CBC Cross-border Digital Fund, to board, succeeding Erhfei Liu, resigning.