So, so much for making users think the company has moved beyond its stagnant products. Which in a lot of ways it has, look at the Yahoo weather app for Android, the design is modern and integrates one of Yahoo's rather under leveraged properties: flickr. That was nice design.
As to signals to the best of the best, this blog post confirms both that she will micro manager you and do design by committee simultaneously (a dubious distinction I don't think even Steve Balmer could achieve). And that's the signal if they like the logo.