From the description, her behavior reminds me a lot of how Steve Jobs behaved. If you read the biography, Jobs would often contradict himself, he was extremely rude, he would cry at meetings, he would hear an idea and say it was shit, and then the next week propose the exact same idea as his own, etc.

I'm not saying she is at all comparable to Steve Jobs, but it sounds like they both know what they want, and don't spend a lot of time with what they think is wrong.

I've said this often, but Jobs was about 50% right and 50% wrong. When Jobs was wrong, it was usually a small strikeout, but when he was right, they were monster home runs, which is why people tolerated Jobs' behavior. Mayer needs to be right a lot more than she is wrong, so I guess we'll have to see how that pans out.