[colin_jack]

Also since we are mentioning Google, they had some interesting to say in one of their books [0]:

"Ratings, although an important way to measure performance during a specific period, are not predictive of future performance and should not be used to gauge readiness for a future role or qualify an internal candidate for a different team. (They can, however, be used to evaluate whether an employee is properly or improperly slotted on their current team; therefore, they can provide an opportunity to evaluate how to better support an internal candidate moving forward.)"

[0] https://abseil.io/resources/swe-book/html/ch04.html#challeng...