Earlier quoted context omitted.
I think the question is not if CEO is good, but if CEO is worth her/his salary.
Hmm, I would think salary would be one of the smaller considerations when choosing a CEO at that level. It's generally going to be a drop in the budget compared to annual revenue. A negotiation point for sure, but more of a side show to other concerns.
But we're talking about $YHOO, which for years has had negative core enterprise value. In such a situation it's not really a drop in a bucket.