Description:The Power Player today is Edward Lampert. Lampert will become CEO of Sears Holdings in February, but he has been calling the shots for some time now. He already is the chairman of the company and through his hedge fund ESL Investments, owns a combined 55 percent stake in Sears as of November 30, according to Thomson Reuters data. Lampert is taking over the CEO job from Louis D'Ambrosio who is stepping down for family health reasons.(1:14)