FirstNet names Joseph Wassel, from DOD’s Defense Information Systems Agency Cyberspace Operations Directorate, executive director (see 2303100023) … National Space Society names Isaac Arthur of Science and Futurism with Isaac Arthur president, succeeding Michelle Hanlon, now president emerita … Kelley Drye names Stroock & Stroock’s Ralph Allen chief operating officer ... Security tech company DCS promotes Raul Sagun to chief growth officer … Cynthia Gaylor to leave as DocuSign chief financial officer, staying on through filing of financial results for its fiscal Q1 ending May 31; company launches search for successor ... Venture capital firm G2 Venture Partners tech investing firm names former Vertiv CEO Rob Johnson an operating partner.