The holding company is eying savings of $250 million ahead of its merger with Omnicom.
In Q4, Omnicom spent $14.6 million on 'acquisition transaction costs' related to its impending merger with IPG.
Results are in for the winner-takes-all pitch.
Christian Kimberley-Bowen is joining Pinterest.
He will depart at the end of the year.
Brown moves to a new role after 15 years as CEO.
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