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Tribune Company CEO Dennis FitzSimons has announced he's stepping down at the end of the year. "I will miss working with you to help achieve the many great things that are ahead for Tribune," he says. New owner Sam Zell, the wildman billionaire who bought the company in April, will replace him as chairman of the…

Rick Smith steps down after 24 years as editor of Newsweek. Says his memo: "Tom Ascheim will become Newsweek's new Chief Executive Officer. Tom comes to us from Viacom, where he established a superb track record of building consumer brands, managing interactive start-ups and delivering strong results in both content…