Lauren Van Wazer leaves Cox Enterprises at the end of...

Lauren Van Wazer leaves Cox Enterprises at the end of the week to become senior adviser for technology law at Department of Energy … Cablevision promotes James Blackley to executive vice president, corporate engineering and technology … Harris Corp. names John Heller, ex-Multimax, president of IT Services business … Tracie Wilson promoted by NBC Universal domestic TV distribution to senior vice president of programming & development … New Metro Ethernet Forum board members: Dennis Kruse, Orange Business Services, chairman; Nan Chen, CENX, president; Robert Kuse, Cox, treasurer; Arie Goldberg, Omnitron, secretary; Carlos Benavides, Verizon, and Phil Tilley, Alcatel-Lucent, global marketing co-chairs; Zhao Huiling, China Telecom, joins board … Steven Horn, ex-Fox Interactive Media, hired by online video site Metacafe as vice president of programming.