Manning Gottlieb OMD has promoted its managing director, Tim Pearson, to chief executive, ahead of the departure of Robert Ffitch. Pearson was promoted from executive director to managing director of MG OMD in July this year. He has been at the agency for 16 years, starting at the Omnicom media agency as a planner/buyer. Following Pearson’s elevation, MG OMD has promoted Natalie Bell, the executive director, digital, content and experience, to managing director after eight years running the agency’s digital team.