Hello again David. You seem to have a bit of a downer on Project Managers... not sure why. Project managers work on many varied types of tasks in many different fields....they don't necessariy need to know how to draw!
For example, I worked on a large project for Royal Mail - they were hoping to build a large rail distribution hub (a large sorting warehouse for mail bags, transport arrivals and departure - both trains and large HGV vehicles, train platforms, staff facilities etc etc). My role was to act as an interface between the client i.e. Royal Mail, and the Architect.
The architects, despite all their skills, didn't have a clue about Royal mail operations and found it quite difficult (at first) to give Royal mail what they wanted - you see, they had no practical knowledge of the operational workplace, or the legal parameters that RMail had to work within. My job was to provide them with direction and a clear picture of what was needed - and not what they initially wanted to provide. So you see.. I didn't need a pen and paper.. I had 25 years operational experience to fall back on..I started on the "shop floor".. oh.... and for me, it wasn't just about the money either... I was proud to work for Royal mail, and I was proud when I - alongside the architects - delivered a very good facility.
There are many types of skills needed to provide an end product - no one profession has the monopoly on skills and integrity.
Apologies for going off subject re: architect fees.