The power brokers: Martin Sorrell
By Arif Durrani, campaignlive.co.uk, 21 July 2011, 9:00am
In the first of a series of in-depth interviews with the bosses of the of the "big five" global marcoms groups, Arif Durrani asks what keeps Sir Martin Sorrell, the founder and chief executive of WPP, awake at night? The key trends in five big areas...
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