Why Experts Make Bad Teachers (2016)(cscalfani.medium.com)
cscalfani.medium.com
Why Experts Make Bad Teachers (2016)
https://cscalfani.medium.com/why-experts-make-bad-teachers-ccaed2df029b
https://cscalfani.medium.com/why-experts-make-bad-teachers-ccaed2df029b
Sounds to me that being a good teacher may be orthogonal to being an expert. With the caveat that you need to understand "enough" of what you teach: I have seen teachers giving wrong explanations (in a non-constructive way) about topics I was more knowledgeable than them about.