THE ESSENCE: The WPP Group network continued to position itself as a full-service marketing organization in 2005. It lifted bars to cooperation by combining the North American P&Ls of its various agencies. Work for Dove showed Ogilvy still knows its way around a big idea. However, strong growth with existing clients and new business strides were muted by the loss of Motorola and Coca-Cola Co.'s Sprite as well as the conviction of two former executives for defrauding the White House antidrug ad program. Insiders wonder how long global CEO Shelly Lazarus will stay as her contract ends.