Considering that the company has burned through multiple CEOs already anyway, I think the case that the company was doomed if she didn't try some major moves is

Considering that the company has burned through multiple CEOs already anyway, I think the case that the company was doomed if she didn't try some major moves is both obvious and compelling. The thing I like is that she's trying both the carrot and the stick at the same time: trying to make Yahoo a better place to work with Google-style amenities, while also making staff more accountable and slashing poor performers. She's also focusing the company much more heavily on mobile which is both obvious and necessary, but which wasn't taken nearly as seriously by previous execs. I don't know whether it will work or not, but this doesn't seem like a "marking time" strategy at all.