Competence at being a CEO, competence in the core business (whether engineering or otherwise,) and competence at splitting focus between completely different le

Competence at being a CEO, competence in the core business (whether engineering or otherwise,) and competence at splitting focus between completely different levels of the business are all different competences. Being skilled at all three is the exception, but that doesn't make the non-exceptions incompetent. If you always aim for the exception, what you actually end up doing is selecting for the third competence; someone who can code-switch. And if that person isn't exceptional, then you just have a CEO who is getting involved things outside their depth.