Marissa Mayer, Yahoo!
Since she took hold of the reins of Yahoo! in July 2012, Marissa Mayer has managed to impress most employees, bringing in an approval rating of 79 percent. One reviewer said that they didn't think they had ever worked in an environment where the CEO takes such extensive action toward teamwork and group projects.
"Great CEO with actual product experience and the focus to get us in the right place in the market. We've turned the corner with traffic and should be turning the revenue corner in 2014," another reviewer wrote.