Ad Biz Thursday Odds and Ends By Kiran Aditham on Oct. 27, 2011 - 4:20 PM -Olson grabbed strategy, advertising, digital and media duties for P.F. Chang’s-owned Pei Wei Asian Diner. link -Mike Berg, one-time in-house editor at JWT, was promoted to editor at Chicago-based Optimus. -Philly’s Re ...