[CorpOverreach]

> that new team should replace another team that's no longer needed, or more likely, involve a combination of hiring some experts and retraining your existing engineers.

The gotcha there is that it rarely goes that way unless you have a very clear direction from senior management, at least at big corps. In most cases, it's just another thing that gets added to the pile, and it's incredibly difficult to migrate entirely out of whatever the old solution was, so now you end up supporting both.

[birdyrooster]

You should always have a next gen and a production version of your infrastructure as a code.