Yahoo's 'seemingly permanent decline': is this the end for the once-mighty firm?

Critics are charging once celebrated CEO Marissa Mayer with failing to pick a direction for the tech company, and questioning whether it can ever recover

Is Yahoo approaching its final yodel? The tech company is reportedly in talks to spin off its core business, as well as whether to finally divest its remaining stake in Chinese e-commerce company Alibaba, the latter fabulously lucrative, the former " well, not so much.

The lion's share of the blame for what ad industry analyst Brian Wieser called a state of "seemingly permanent decline" in a note to investors this week is falling on its once celebrated CEO, Marissa Mayer.