Replacing Powell

I have heard to the effect that Colin Powell was going to resign as Secretary of State should President Bush be re-elected. I think that there is a good chance that if Bush is re-elected, and Powell steps down, that Alan Keyes may be nominated in his place. This assumes of course that Keyes fails to win the Senate seat in Illinois. Keyes, as a strong conservative, will receive support from the GOP senators, and his previous diplomatic experience with the UN will help as well. The fact that he is also an American of African descent will decrease the ability of the Senate Democrats to filibuster him, although I am sure that they will try. I think that Condi will stay where she is as National Security Advisor, because she is probably the best person for the job at the moment. Any thoughts?