I haven't read into this, and frankly don't really care enough to do so. It appears it has to do with the fact that the city has embarked on a drive to increase non white teachers. So non-whites make up the best part of the lesser tenured teacher cohort. So it makes no sense now to get rid of those teachers. That will only make the disparity even bigger.

Liken it to wanting to inject new ideas into a company, so recruiting new people one day and then getting rid of them the next because they are the newest people. One step forward and one step back.

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