I wonder how universal these stages are. All I can say is when I worked at a 15 person company, it was extremely clear to me that we needed more structure than "everyone reports to the CEO". We struggled to prioritize between different projects, milestones weren't clearly defined or owned, at times there would be long debates on product direction without a clear decisionmaker, etc etc.

Not to say the article is so wrong. I think their advice to consider elevating a few engineers into informal tech leads is a great answer. We went with the path of hiring one dedicated "manager" of all engineers and that worked pretty well too.

Depends team to team and founder to founder. I've seen early stage startups where most ICs were able to self manage, but others where some form of structure was needed. At the stage that you mentioned, it's natural for founders to end up hiring an Engineering Lead.

> consider elevating a few engineers into informal tech leads

It is potentially risky - I've seen plenty of talented engineers flounder because they were thrust into an ill-suited management role too soon, but I think if someone is motivated and eased into the role they tend to be superior to an outside hire.