After all, earlier this month, an analyst at Swiss financial group UBS called the company's business model "unproven." Closer to home, during last week's Echelon Malaysia Satellite event, a speaker noted that Groupon's gross margins (revenue minus cost of goods sold) had dropped from over 65% three years ago to around 30% today, and described Groupon as "a company derailing itself." But Neoh (pic) will have little time to dwell on the current flux facing the company, which estimates that the search for a new CEO would take between three and six months, mainly because it needs someone who can manage "a highly complex organization in 46 countries" said board member Peter Barris in a Bloomberg TV interview. Groupon chairman Eric Lefkofsky is acting as interim co-CEO together with his vice-chairman Theodore Leonsis.