Bush looking for Rumsfeld's successor
Bush has put out a quiet feeler to replace Rumsfeld in recent weeks. He was politely turned down by at least one candidate he personally called. Unknown: is this one of many candidates Bush has sounded out? Is there a Bernacke-style search going on quietly in the background.
Politically, I can't see any such change coming before the election, and if it were right afterwards, everyone would ask about the politics of it, so I don't know.
Treat this as rumor at this point, but put it on the radar.