Yes, and no. Management teams have different specialties. You can't be an expert at everything. A big part of doing management well is understanding what to do

Yes, and no. Management teams have different specialties. You can't be an expert at everything. A big part of doing management well is understanding what to do yourself, what to delegate internally, and what to outsource. There are plenty of companies which didn't do so well when the management team went from a domain-specific background (e.g. having an electronic engineering run an IC firm) to people with an MBA background. Bill Gates, Steve Jobs, Jeff Bezos, and many other founders were exceptionally competent managers, but at the time, they had never run a major firm before. Everyone has their first major restructuring at some point.