I find it slightly disturbing that the author doesn't consider a lack of CS knowledge to be a big problem. I would hope that a teacher would have strong knowled

I find it slightly disturbing that the author doesn't consider a lack of CS knowledge to be a big problem. I would hope that a teacher would have strong knowledge of CS theory, at a level beyond what they teach. So just undergrad level knowledge would suffice in this case. In addition I would hope for reasonably strong practical knowledge of the language they teach. I'm not saying that a teacher needs to go and learn rust/go/swift, but if you are teaching python you should it well.