Concentrate on the important stuff

As a rule of thumb expect that between 10% and 20% of the problems in a project are of technical / professional nature that requires technical / professional knowledge to be resolved.

Yet,9 out of 10 companies see it as important that their project managers have a technical / professional background! So they grab the best technical / professional to solve the 80% to 90% of the problems, which is about something completely different! Is that stupid or what?

More of the same issue here