Toyota calls it the gemba walk. Managers need to see how the factory is running with their own eyes. Not just live behind a desk and listen to what they hear in meetings.

A movie director can see the sets with their own eyes. But you can't see the state of a software codebase without reading and understanding the code, and the most surefire way to do that is to try to write something, even just documentation.

You don't assess the state of your software by walking around the office and looking at hands on keyboards. You look at the codebase.

> I tend to agree but, playing devil's advocate, is this true for other roles? Does a movie director need to know how to build sets? How to sew costumes? How to use Blender/Maya/Houdini?

I don't know that much about movie making, but my understanding is that there would be managers and/or leads within each specialty, who are (among other things) managing the interaction between their specialty and the director / producers.

That seems pretty comparable to what's being discussed here.

In any industry, if you want a team to work well, you have to have someone with both authority and hands-on experience who’s responsible for providing day-to-day guidance. Sometimes that person is called a “supervisor” or “tech lead” instead of “manager”, although this typically implies some division of responsibilities as well; no reason the person providing guidance necessarily has to be the same person reporting to leadership or hiring and firing.

> I tend to agree but, playing devil's advocate, is this true for other roles? Does a movie director need to know how to build sets? How to sew costumes? How to use Blender/Maya/Houdini? My manager can code, used to code, sometimes does code, but they aren't familiar with their team's current work.

Many directors started in other roles in the movie industry, typically as writers, PAs, or other subspecialties. Chad Stahelski was a stuntman and stunt coordinator before he started directing John Wick, and it really shows.

I think the clear distinction is between someone who understands a part of the job, and someone who is good at part of the job. If you don't understand how costuming works, as a director, you're going to have a hard time getting good costumes, but by no means does that mean you're able to pinch hit in that role. I personally believe that it's difficult to replace hands on experience as a way to truly understand something.

In software engineering, I think there's a huge gap between managers who worked in some other industry and transferred over, versus having previously been an engineer, even a mediocre one. Knowing how the sausage is made is hard to replace.

Though the fact that directors have certain biases from how they working into the role does also highlight an issue with this kind of effect: when you have technical leads or project managers on a big multi-disciplinary project, they will have a natural tendency to favor the areas they are more familiar with, and bias the decision-making and planning of the project around that. It can be difficult to step back and optimize for the project/system as a whole.