'Leonie Haimson writes here about the disastrous legacy that Joel Klein and Michael Bloomberg left to the New York City public schools. One is called the Absent Teacher Reserve -- a pool of teachers left jobless because their school closed or they were awaiting disciplinary proceedings. Now hundreds of talented, educated & experienced teachers are in the lowly ATR pool, where they are treated disdainfully regardless of the reason they are unassigned. The ATR pool costs the city more than $150 million per year. The Department of Education says it will assign these teachers to schools even if the principal doesn’t want them (most are experienced and thus expensive). Klein used to use the very existence of the ATR pool to denounce tenure, seniority. It happened to me. Read my comment!'