This news, while doubtless important, was not really shocking in the least.
The pack has been baying for Rumsfeld's blood for quite some time now. Why, just two days ago, the various publications of the armed forces themselves called for Rumsfeld to go.
This added to the voices that had already been calling for the (for lack of a stronger word) embattled Secretary of Defense to go.
Will there be more shake-ups in the cabinet? Most likely yes, and some of them will not be at the president's behest. With a hostile Congress and time ticking down, many cabinet members will be looking to do some political "profit-taking," getting those cherry lobbying, lecturing, and consultant jobs that doubtlessly await departing cabinet members.
Just think about how many cabinet members left in the second terms of both Ronald Reagan and Bill Clinton.
They don't want to go down with the ship when there is a golden life preserver waiting for them on K Street or a university political science department (or sometimes both).
Time capsule, Bubby edition
5 weeks ago