Nick Brien Out as McCann Worldgroup CEO [Updated]

Sources say agency revenue has declined by as much as 25%

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Despite an increasingly tense relationship with parent company Interpublic, McCann Worldgroup chief Nick Brien was surprised and angry when he was told yesterday that his tenure was ending immediately, sources said. Brien, who is said to not have another job lined up, has left Worldgroup offices and could not be reached. The buyout of his contract is $4.2 million. 

Replacing him as chief executive is Harris Diamond, chairman and CEO of Constituency Management Group, Interpublic’s PR, public affairs, sports and entertainment marketing, corporate branding and experiential marketing arm. 

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