That works because the managers can do the job of their employees. Most tech fields to which I've been exposed, managers might have once been able to do the job

That works because the managers can do the job of their employees. Most tech fields to which I've been exposed, managers might have once been able to do the job of employees, but are either out of touch with the technology of today or their skills have ossified. Not to mention the managers that could never do the job in the first place...