he's is being replaced by ross levinshon, the firm's head of global media. so what does this change at the top mean for one of thnati's biggest media companies? erika miller reports from new york. >> reporter: this is ross levinsohn, the seasoned ad exec who is in charge at yahoo!, at least for now. but let's be clear, even though scott thompson is out, the firm still faces big credibility hurdles. >> when you look at character and reputation, they are as important today as they are capital issues. and we can't have a company of any size, regardless of the size as yahoo that it plays in our economy and our culture when the ceo is falsifying information. >> reporter: the media giant's share price is now about half what it was in may 2008, when yahoo! turned down a bid from microsoft. revenues have fallen, as the company struggles to keep up with google and facebook in attracting online advertising. and now that thompson is out, his turnaround plan is called into question. >> there's a reorganization plan in place. what happens to that reorganization plan? what