Amid a tumultuous past year for McDonald's, the world's biggest restaurant chain's CEO Don Thompson is retiring after two years on the job, effective March 1. The fast food is also getting a new CFO. The restaurant's Senior Executive Vice President and Chief Brand Officer Steve Easterbrook will replace Thompson, who is a 25-year veteran of the company, the company announced on Wednesday. Previously, Easterbrook served as president of McDonald's Europe and led the chain's "efforts to elevate its marketing, advance menu innovation, and create an infrastructure for its digital initiatives," it said in a release. The company's CFO Pete...