And Semel into three parts his kingdom divided Okay, the news is out . At first glance, it's underwhelming. Corporate boilerplate. No timetable for Semel's departure. The prospect of layoffs, but nothing defined. COO Dan Rosensweig , who was already contemplating an exit into Democratic politics, will leave in March. Ascendant CFO Sue Decker , as expected, gets more power, taking over sales. But, the more interesting question: where is Jeff Weiner , Yahoo's former golden boy? The internet company is to be divided into three operational groups: one headed by Sue Decker; one by the CTO; and the third, the most important, covering Yahoo's media sites and web applications, to be headed by an experienced executive for which Yahoo has initiated a search. It sounds as though Jeff Weiner's search group will be subsumed.