So, Duncan should start by saying he is sorry for imposing collective punishment on teachers in schools destined for turnaround. His demand that 50% of teachers be replaced in those schools, along with his incentives for using a statistical model for firing teachers, means that effective educators have lost their careers simply because they taught in ineffective schools. His mass dismissals perpetuate the "reformers'" myth that teachers' "low expectations" are the cause of dysfunctional schools. Under Duncan's rules, districts did not have to impose litmus tests on teachers or to systematically drive veteran educators out of the profession. But he funded districts that, predictably, used federal rules to get rid of Baby Boomers' higher salaries and benefits, and to keep veteran teachers from expressing their professional judgments.