I don't think there is any practical way to have an evaluation system that is based only on unbiased opinions...there aren't nearly enough of those to go around. Then again, I don't think there's anyone who is checking evaluations who would be silly enough to base an assessment on a couple of coaches who just lost, either. I suspect that if you took evaluations from a large enough sampling of people who witnessed the same official in action, the composite of their opinions would be somewhere nearing the truth. To say that we can't use any coach's opinions because one by itself is biased is like saying we can't let anyone vote because one person isn't qualified to pick a candidate.
For the record, the officials I've met and have respect for outnumber the ones I have had serious issues with. The difference is, the best officials often go completely unnoticed, while those who make bad mistakes invariably call attention to themselves.
