[Myrddin]

If people 'managing' are actually people like Scrum Masters, Business Owners and Business SME's, it makes sense to have those people. Actual managers, less important. But the three I listed?

I'm a certified scrum master, but that doesn't take away from being a project lead and primary contributor to the code base. It's a one-of-many-hats responsibility. On other projects, I've been charged with building the "golden master" VM image and doing a full STIG lockdown for DSS inspection prior to IATO. There is no reason to be pigeon-holed with a narrow set of skills. I'm as comfortable writing real-time UNIX kernel communications code and being a principal investigator tracking budget burn rates and interacting with my customer. Meeting the needs of my customer and management matters.

[Lazamataz]

See, you get it. Many people those outside a company call ‘managers’ , are not, and are in fact important people in the modern development model.