Ofcom promotes Steve Unger to acting CEO, effective at year's end, succeeding interim CEO Ed Richards ... Association for Unmanned Vehicle Systems International hires Brian Wynne, ex-Electric Drive Transportation Association, as president and CEO, effective Jan. 12, succeeding Michael Toscano, retiring ... Concurrent hires Derek Elder, ex-Arris, as CEO and adds him to board, succeeding CEO Dan Mondor ... Lobbyist registration: Neustar, Witt O'Brien's, effective Oct. 17.