Carol Bartz must be getting lonely. First one of the Yahoo CEO's assistants ditched her a for hipper chief executive. And now her top salesperson is doing likewise — and Bartz learned about it by reading the news.

"Top money-maker" Joanna Bradford is leaving Yahoo for infamous robo-news factory Demand Media, and Yahoo's top executives don't seem to know about it, All Things D reports. For Bartz, that's yet another blow to her ego on top of a fresh punch to the pocketbook. The tough-as-nails Yahoo CEO may yet instill the discipline needed to turn her dying internet company around. But bitter medicine does not go down easy, especially without the sugar of rising revenues or stock price.