THE ESSENCE: How low can Lowe go? As the year got under way, it seemed the suffering Interpublic network might have momentum with new leadership. That, however, was before a miserable stretch where two retail clients absconded. Unilever pulled a big chunk of detergent business. Losses from Macy's, A&P, Century 21 and others reduced Lowe's New York office to a shop servicing a handful of clients. Meanwhile, founder and industry eccentric Frank Lowe came out of retirement with a new shop in London and his namesake agency's Tesco business. Lowe's future as a global network seems in jeopardy as its remains one of Interpublic's biggest problems.