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EXEC SHUFFLE

Media giant Viacom announced today that Mel Karmazin is resigning as president and chief operating officer. Tom Freston and Leslie Moonves — who head up Viacom's MTV and CBS divisions, respectively — have been tapped to succeed him.

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Media giant Viacom announced today that Mel Karmazin is resigning as president and chief operating officer. Tom Freston and Leslie Moonves — who head up Viacom's MTV and CBS divisions, respectively — have been tapped to succeed him.