GM Won't Ditch Commonwealth, Joel Ewanick’s Brainchild

But questions persist after CMO's sudden departure

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General Motors remains committed to Commonwealth following Joel Ewanick’s abrupt departure, Adweek has learned. The four-month-old ad agency was the cost-cutting brainchild of Ewanick, GM’s marketing chief since 2010. In early March, he launched the shop to handle nearly the full breadth of Chevrolet’s account in an unusual joint venture that brought together creative rivals Goodby, Silverstein & Partners, and McCann Erickson Worldwide. In a seemingly risky move, Ewanick awarded Commonwealth work that was previously handled by 70 ad agencies globally.

One of the principals in the venture, Jeff Goodby, has been Ewanick’s friend and business associate for two decades.

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