As usual you refuse to address the actual issues.
SATs and the like are used as admission tests for the small fraction of Americans who go to university and they are poor at that. Studies show that GPAs are better at predicting success.
Discussion and Conclusion
This research examined the relative utility of various predictors of college success as measured by students’ sophomore and senior-year college GPAs. The variables used in this prediction study included HSGPA, SAT, and CLA scores. As expected, HSGPA was found to be the best single predictor of college success (Atkinson & Geiser, 2009), accounting for 21.4% of the variance in sophomore-year GPA and 20.0% of the variance in senior-year GPA
http://cae.org/images/uploads/pdf/Comparing_Alternatives_in_the_Prediction_of_College_Success.pdf
And in case you missed it GPA (or grades as far as Canadian admissions go) are based on how teachers assess their students meaning the teachers themselves are better at predicting success than standardized tests. So standardized tests fail at their main goal of predicting future success (the purpose of education as I see it) and you now want to use it to evaluate something other than what the tests were designed for. Simply put, if the opinions of trained teachers are the best indicator of student success, it seems to me that the opinions of trained principals would be the best indicator of successful teaching. As I suggested before, have a couple principals the teacher doesn't know take part in the evaluation to remove accusations of bias.
It's pretty sad that despite me stating what I see as the best evaluation, you continue to claim there are no measures.