Chicago Tribune: Tribune Media’s chief financial officer, Steven Berns, has resigned effective Aug. 11, the company announced. Berns, who has been CFO at Tribune Media since June 2013, is leaving for a CFO position at Shutterstock, a New York-based provider of commercial imagery and music. Chandler Bigelow, who previously served as CFO from 2008 to 2013, will resume the role on an interim basis while an external search is conducted for a full-time successor.