Craft Proficiency vs. Teaching Method Proficiency
What are the pros and cons to someone highly developed in their craft to switch over to full-time teaching? For example, a scientist becoming a teacher or an artist stopping their full-time pursuits to teach.
What are the pros and cons of the reverse--a teacher changes subjects and begins teaching a subject that they are learning as they go. For example, a science teacher becomes an art teacher and enjoys learning the craft as they go in the first year and beyond.