Eric Lefkofsky
Is Groupon engineering a comeback?
Is Groupon engineering a comeback?

A little over a year ago, Groupon Inc. was facing a grim outlook over its long-term viability.  The company's profit was less than stellar. It faced growing competition from other companies offering deals on restaurants, retail stores and gyms. And its stock was plunging fast just months after it went public.  But on Wednesday, the Chicago-based company posted second-quarter earnings that beat expectations and announced the permanent appointment of Eric Lefkofsky as the company's chief executive. He had been serving as interim CEO since February when Andrew Mason was ousted.  Groupon said after the markets closed Wednesday that it lost $7.6 million in the...