On: Nobody wants to teach anymore

[SoftTalker]

Is there any evidence to show that these people make good teachers?

You don't need to be a genious to teach. You need to have good social skills with kids, care about doing a good job, and a mastery of the subject matter (which not very demanding for even average-intelligence adults, at least until the latter part of high school).

[AlbertCory → SoftTalker]

Yes to all of those: necessary but not sufficient.

You left out "willing to do whatever it takes for THAT kid, regardless of what the textbooks or principal or union says."