RPT-INSIGHT-Rivals poach Publicis, Omnicom clients, staff as merger faces snags
April 30, 2014 at 20:26 PM EDT
LONDON/NEW YORK/PARIS, May 1 (Reuters) - Publicis and Omnicom have lost more than $1.5 billion of client work in recent weeks and face a fight to retain billions more, including a huge Samsung contract, just as the two advertising firms struggle to keep their merger on track.