My biggest road blocks as an engineer has almost never been the authorship of code but everything else around it.

* Getting code reviewed

* Making sure its actually solving the problem

* Communicating to the rest of the team whats happening

* Getting tests to pass

* Getting it deployed

* Verifying that the fix is implemented in production

* Starting it all over when there is a misunderstanding

Slinging more code faster is great and getting unit testing more-or-less for free is awesome but the separation between a good and great engineer is one of communication and management.

AI is causing us to regress to thinking that code velocity is a good metric to use when comparing engineers.