MTV Networks Chairman-CEO Judy McGrath to step down; heads...

MTV Networks Chairman-CEO Judy McGrath to step down; heads of MTV operating units to report directly to Viacom CEO Philippe Dauman …Cisco assignments of senior vice presidents as part of streamlining units: Pankaj Patel and Padmasree Warrior will lead engineering, and the Emerging Business Group will be run by Marthin De Beer … USTelecom promotes Karn Dhingra to director-communications … MUSL TV hires Robb Weller, ex-Weller/Grossman Productions, as executive vice president-programming and production … National Religious Broadcasters hires Aaron Mercer, ex-Generation Forum of the National Association of Evangelicals, as vice president of government relations … Univision promotes Carlos Deschapelles to senior vice president, sports sales … Julian Bellamy, ex-Channel 4 U.K., becomes Discovery Networks International creative director-head of production and development.