WPP Group’s Ogilvy & Mather Worldwide is expected to cut between 50 and 100 jobs in its New York office, AdAge reports. The layoffs are being blamed on the “changing nature” of the advertising business. Citing an unidentified executive at the agency, the article says compensation from it blue chip clients like IBM and American Express has been falling, as spending on traditional ad budgets shift to inexpensive digital media. However, the agency’s digital shop, Ogilvy Interactive, is not likely to be exempt from the cuts, which will also hit units such as OgilvyOne Worldwide, Ogilvy PR and OgilvyAction. Senior management posts are considered safe, at least for now.