She was was never the chief, only the chief's main administrator.

"Assistant to the regional manager". [1]

1. https://www.youtube.com/watch?v=wA9kQuWkU7I

Her only true role was to fulfill Musk's silly promise to step down as CEO after a public vote. https://x.com/elonmusk/status/1604617643973124097

You don't think Elon went behind her back constantly? You think the next CEO will have more to say? She pretended to be in charge, she got paid, good for her. What are you hoping for. X is a dump, and the sooner it goes away the better for everybody.

She was CEO of X which was sold to xAI. I'm not sure she had any control over Grok.

Physical restraint is the only thing that would stop him and I imagine he rolls with security so…

There's only one way to stop Elon Musk from doing erratic, value-destroying things like that, and that's to ambush him in the parking lot with a tire iron.

Yaccarino doesn't strike me as the type.