This is a huge problem IMHO. I topped out at L7 on the FAANG EM track, but that’s dozens of ICs and a few EMs in your org and I still think you need to be able to build the software and review diffs and write serious ones now and again. Clearly this is now only part of your job, not the focus of it, but it’s very difficult to manage a process that you don’t understand with some sophistication.
In everything from law to management consulting to steel fabrication: the person in charge is the most knowledgeable person. Carmack is the best hacker, Mike Krieger wrote code. Hell pg wrote this site and the language it’s written in while building the most successful early-stage investment firm in the world.
Obviously directors and VPs and CEOs are delegating the details at same point, but this idea that an L6 manager shouldn’t need to seriously understand the subject matter seems wrong to me both in principle and based on watching it go to hell countless times.