Sure Sign of Trouble

...in the Kerry camp...

The money quote:

One source pointed out that shakeups aren't always signs a campaign is in terminal trouble. Last summer, Kerry replaced his campaign manager and went on to win the nomination.

(Emphasis mine)

If someone has to point out (and a reporter feels that he needs to point out) that what you're doing isn't always a sign that your campaign in trouble, it's a sure sign that your campaign is in trouble.