Chipotle Mexican Grill Inc.’s marketing chief has returned to work following less than three months on administrative leave after he was indicted for allegedly buying cocaine. Mark Crumpacker’s return comes as Chipotle embarks on a new marketing campaign to convince customers that its food is safe and as an activist shareholder adds new scrutiny to the company’s turnaround effort. “After careful consideration and review,...

Source: Wall Street Journal September 16, 2016 21:56 UTC