For teams you can measure meaningful outcomes and improve team metrics.
You shouldn’t really compare teams but it also is possible if you know what teams are doing.
If you are some disconnected manager that thinks he can make decisions or improvements reducing things to single numbers - yeah that’s not possible.
How? Which metrics?
Unfortunately there's a lot of lag
None of this works to evaluate individuals or even teams. But it can be effective at evaluating tools.
To use your example, a user with an LLM might say "LLM please fix this" as a first line of action, drastically improving this metric, even if it ruins your overall productivity.
edit: typo
That is, I, personally, am not measured on how much AI generated code I create, and while the number is non-zero, I can't tell you what it is because I don't care and don't have any incentive to care. And I'm someone who is personally fairly bearish on the value of LLM-based codegen/autocomplete.