The author is not completely correct , in big tech project managers are assigned to manage projects , depending on complexity and collaboration needs.
> For complex projects that span several teams across different offices and time zones, leading such a project is a full-time job for an engineer. Big Tech pulls in Technical Project Managers (TPMs) to manage these complex, and often strategic projects, taking the load off engineers.
> Dedicated Program Managers or Project Managers still exist within Big Tech. They are typically tied to external-facing commitments and customers – such as a Program Manager for the Apple partnership – or to long-running initiatives, like a compliance program. Similar to how TPMs are not allocated to a single engineering team, these Program Managers or Product Managers also don’t tend to have an engineering team, but they work across many teams instead.
The author obtained first party data backing up what he wrote. You present nothing.