She was not present when Yahoo invested in Alibaba.
Her job, presumably, as the CEO was to convince all of the enterprise's employees and customers that Yahoo would be sticking around for the long run. At the same time, she had to prepare to wind down the business while returning capital to the shareholders. I would call that a difficult job.
My lesson from this is most companies with excess capital should make investments, not acquisitions. Most certainly a company with a long string of failed acquisitions should. Yahoo has been repeatedly given as an example, but others like Google don't have a particularly great record either. Berkshire Hathaway is a great example of a massive business centrally owned by a very barebones team (in Omaha.)