CEA hires Denise Medved, ex-Tiny Kitchen and formerly with Reed Exhibition Companies, as vice president-sales and business development for CES and CES Asia ... Juniper Networks promotes Rami Rahim to CEO and adds him to board; Shaygan Kheradpir resigns as CEO and a director after a board review of his leadership and conduct in negotiations with a customer ... Madison Square Garden Co. hires Andrew Lustgarten, ex-NBA, as executive vice president-corporate development and strategy ... At Discovery Communications, in Discovery Networks International realignment of European operations: Dee Forbes promoted to lead operations in Belgium, Ireland, Luxembourg and Nordic countries as president and managing director, Discovery Networks Northern Europe; Henrik Ravn, who managed Discovery's Nordic operations, stepping down at year's end; Kasia Kieli also now oversees Austria, Germany and Switzerland as president and managing director, Discovery Networks Central & Eastern Europe, Middle East and Africa; and Marinella Soldi now also oversees France as president and managing director, Discovery Networks Southern Europe ... Brightcove hires Kevin Rhodes, ex-PlumChoice, as executive vice president-chief financial officer, effective Dec. 1; Chief Accounting Officer Chris Stagno, named interim CFO earlier this year, will resume previous role ... 8x8 hires Enzo Signore, ex-Avaya, as senior vice president-chief marketing officer.