UK will report financial numbers directly to CEO Arthur Sadoun.
US agency group buys digital commerce business from owner of Cannes Lions.
WPP's CEO talks to Campaign after Q3 revenue decline.
Job cuts are likely to be part of plan focused on simplification at Group M and VML.
CEO tells Campaign he is optimistic, after reporting 4.5% growth in Q3, ahead of some key rivals.
French agency group expects organic revenue to be ahead of most rivals.
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