Jack Tretton to step down as Sony Computer Entertainment...

Jack Tretton to step down as Sony Computer Entertainment America CEO and president March 31 after “mutual agreement” not to renew his contract; to be replaced by Shawn Layden, Sony Network Entertainment International chief operating officer and executive vice president … World Intellectual Property Organization Director General Francis Gurry, whose first term ends Sept. 30, nominated by WIPO Coordination Committee for a second term, and WIPO General Assembly will meet in an extraordinary session May 8-9 to confirm the nomination … Univision Communications hires Borja Echevarría de la Gándara, ex-El País, as vice president-digital, Univision News, new position … Robert Atkinson, Information Technology and Innovation Foundation, named to State Department International Communications and Information Policy Committee … Advanced Television Systems Committee board adds Brett Jenkins, LIN Media, filling position vacated by Jim Kutzner, who retired from PBS … Tom Sugrue retiring from T-Mobile, Kathleen Ham to take over as acting head of D.C. office … Radio One promotes Jeffrey Wilson to regional vice president, Mid-West radio stations.