RICK EISERMAN has been named North American managing partner of the Irvine office of Young & Rubicam Brands. In addition, DAN OLSON, currently Wunderman's managing director in Irvine, has expanded his role to chief operating officer, responsible for both Y&R and Wunderman. Eiserman joined Y&R in 1996 ans was a co-founder of BrandBuzz, an independent division of Young & Rubicam Brands.