Where I work, all the middle management (one exception, he was hired from the outside) was promoted from within due to high quality work and desire to manage.
At a prior job it was half and half. Half were promoted because of stellar prior work and half were promoted to remove their incompetent from harming the organization. I worked for both kinds at that organization.
At a prior job it was half and half. Half were promoted because of stellar prior work and half were promoted to remove their incompetent from harming the organization. I worked for both kinds at that organization.