What about this aspect of the problem?
http://teacher-attrition.wikispaces.com/
http://teacher-attrition.wikispaces.com/
Quote:Teacher attrition is a problematic issue in education that many schools around the nation have to face. Many school districts focus on teacher recruitment when the real problem is teacher attrition. “Low-performing urban schools are experiencing the brunt of the teacher shortage” (Wise & Levine, 2002). These schools are forced to hire inexperienced and unprepared teachers. Sixty percent of teachers in urban settings leave within three years (Wise & Levine, 2002).