Not a good sign
No matter how it's spun, it's never a positive development when a candidate dumps her campaign manager in the middle of a hard-fought fight.
Hillary Clinton did that over the weekend, replacing campaign manager Patti Solis Doye with her longtime aide and confidante Maggie Williams. That came on the heels of losses to Barack Obama in caucuses or primaries in Washington state, Nebraska, the U.S. Virgin Islands, Maine, and Louisiana. Because of the Democratic Party's proportional representation rules, Clinton will still pick up some delegates in each state. But the momentum is clearly with Obama.
Running for President is both the ultimate ego trip and the ultimate gamble. You do it because you believe you are better than anyone else to run the country, but you do it knowing that only one person can get your party's nomination, and only one person can become President. Somebody suffers a crushing personal defeat, the ultimate rejection, and it might be you. For the rest of your life and throughout history, you will carry the "loser" tag. Yet you push on because you've been preparing for this your entire life. How can they deny me?
Clinton has to be thinking those thoughts about now. Her best bets are in Texas, Ohio, and Pennsylvania, where Gov. Ed Rendell has endorsed her. She still has a narrow lead in delegates if the so-called "super delegates"--party officials--are counted. But how would it look if the super delegates thwarted the will of the people?