[wakawaka28]

There totally are specific teachable skills involved with being an executive, although they are abstract for the most part. Above all an executive should have an adequate understanding of the thing they manage. But resource management, estimation, accounting, public speaking, knowledge of relevant laws, workplace psychology, etc. are all skills that executives need and can be taught. If you meet an executive with these skills and then meet one without them, you'll know what I'm talking about. I would also say the same of sales jobs, but sales is relatively narrow.