Ad giant enters exclusivity, edging past Accenture Song and Omnicom in marquee pitch
$13bn merger sparks senior exits and a global media shake-up
Leadership shuffle aims to steady operations and accelerate growth in a transforming market
The reshuffle brings Prasoon Joshi and Aditya Kanthy to the top of the table
Leadership exits as FutureBrand folds into McCann ahead of mega-merger
