In his freshly minted column, Charlie Cook says it's time to shake things up at the White House. Cook's recommendations include:

• Bring in someone who is experienced but not a loyal friend to replace Andy Card. Possible names include Ken Duberstein, Dennis Thomas, Will Ball, Howard Baker, Vin Weber, or Bill Cohen.
• Get Karen Hughes out of the State Department and back in the White House as Deputy Chief of Staff as soon as possible.
• Hire someone with experience and gravitas to run the Congressional Laison office and put greater emphasis on managing relationships on the Hill. Cook suggests former Congressional leadership aide Dan Mattoon.
• Finally, bring in some new blood on national security. Cook suggests John Lehman (fmr Navy Sec), Richard Armitage, Robert Zoellick, or possibly John Danforth.

Generally, I think the prospect of change among the senior White House staff is good and would provide a needed spark and energy and enthusiasm to help the administration get back on track. That said, there is value in continuity of leadership and a potential danger of too much change happening too quickly.