If the education experts can't tell the difference why bother trying to find good ones? Pay low wages and scrape the bottom of the barrel, there is no measurable difference between any of them right?
And yet somehow we continue to hire and manage software developers, evaluating their performance holistically.
What is it about teaching that supposedly makes skill so uniquely opaque to administrators that it's (teach to the test) XOR (pay by seniority).
Contrast that with code that doesn't compile/link or requires way more QA. Or personality issues that are sorted quite easily by a functional team/leader.
Teachers are more like naval vessel commanders than software engineers.