American Express Moves Its Global Brand Account to Mcgarrybowen After More Than 50 Years With Ogilvy

American Express has moved a large chunk of its international advertising business from Ogilvy & Mather to mcgarrybowen in an unexpected shift. The client did not issue an RFP. "Mcgarrybowen will be working with us on developing a new global brand platform that will bring together all of our brand and product-related work under one...