Well... Those that are best at interviewing and selling themselves are the most likely to quit after finding a new position. That doesn't necessarily correlate with the highest performers. Might actually correlate more with those that also spend a lot of time on internal politics, which are good for their performance reviews but not for the companies actual performance.
Especially in the more technical roles most of the real top performers I've seen were not very good at politics or interviewing.
The really talented technical people I know have what I call “eff you skills.”
They literally walk away over minor inconveniences like “you can’t use your own mouse here” or “you have to use VS Code and not your Vim setup.” Don’t like something management does? “Eff you.”
Last place I was at did one day in the office, and they all left without new jobs.
Especially in the more technical roles most of the real top performers I've seen were not very good at politics or interviewing.