And Semel into three parts his kingdom dividedOkay, 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.