Hagel is Obama's choice to be defense secretary, while Brennan is being nominated to lead the CIA. Along with John Kerry -- who is nominated to be secretary of state -- Brennan and Hagel would play major roles in shaping and implementing Obama's national security priorities for the next four years.
Obama is making it clear that he's ready for a tough confirmation fight in the Senate. Hagel has been accused of being anti-Israel and soft on Iran. And Brennan has faced questions about his ties to harsh interrogation techniques that were used during the administration of George W. Bush.
http://accesswdun.com/article/2013/1/256870