The Minneapolis superintendent of schools posted all their teachers VAM scores in the newspaper so the "bad" teachers could be shamed into doing their jobs. A big surprise, the "worst" teachers were nearly all in the low income schools. If I were a teacher looking for work, I'd stay away from a district that showed such behavior. I imagine this will be true of the most qualified candidates looking for work. Also, in view of the public shaming, who would take a job in a high-poverty school?