Some thoughts on lead time in the age of AI
November 27, 2025
Over and over I see that in the paradigm shift we are in now, the good old practices keep resurfacing. For example: doing BDD and TDD turns out to be a good idea even if the code is written much faster—and often not by you. Or having a solid understanding of how to create a good, well‑structured engineered application is more important now than ever.
There are more things, but I’ll get to that at the end.
In this post I wanted to share some thoughts about lead time that I cannot get out of my head. Let’s go back to the beginning by me sharing the simplest diagram I can think of, presented here in my handwriting from 2018, first shown in a blog post on flow efficiency.