Unless something is broken, don’t fix it. This is a worthwhile approach to processes. We develop and refine processes until they attain perfection. Once achieved, these processes should repeat consistently and efficiently. No tinkering required.
Here, complacency is good.
The reason we create processes is that we hope to achieve something. An outcome or result. We should constantly determine whether this outcome is still relevant. We should also constantly evaluate whether this perfect process is still the right way to get there.
Here, complacency is extinction.
Know when to stop tinkering and when to revamp the whole thing.