Larry Page using Android software and, by 2010, 17.2% of the handset market consisted of Android sales, overtaking Apple for the first time. Android became the world's most popular mobile operating system shortly afterward. Following a January 2011 announcement, Page officially became the chief executive of Google on April 4, 2011, while Schmidt stepped down to become executive chairman. By this time, Google had over $180 billion market capitalization and more than 24,000 employees. After Schmidt announced the end of his tenure as CEO on January 20, 2011, he jokingly tweeted on Twitter: "Adult-supervision no longer needed." Quartz organizational management reporter, Max
Tom Coughlin (Walmart executive) January 2001, Coughlin was elected to the board of directors for ChoicePoint, a publicly traded data aggregation firm. That same year, he was elected to the Walmart board of directors. In August 2002, he was also given the title of CEO for Sam's Club USA. The following April, he became executive vice president and vice chairman of Wal-Mart Stores, Inc. On December 6, 2004, Walmart announced that Coughlin would retire effective January 24, 2005. When Coughlin's retirement was announced, Walmart praised Coughlin for his longtime success at the corporation. Walmart CEO Lee Scott said in a company-issued press release, "Tom