<p>Sure, it’s fine IF the school says Profs only or IF the school says employers are OK. But for CA schools, the Instructor Evaluation form states:</p>
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<p>Doesn’t seem to be much ambiguity about who qualifies to write an instructor LOR.</p>
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<p>Where in the world did you come to that conclusion from what I said? Often TAs know the student much more from labs/sections that the prof does from a lecture. And if you read carefully, I did not say that a TA was better than a Prof, I said that the person that knows you the best (either TA or Prof) will write the strongest LOR.</p>