The document discusses college readiness among American students. It notes that while college enrollment is at an all-time high, less than half of students complete their degrees. This suggests that many students are placed in college but are unprepared. The paper then explores teacher effectiveness as a solution, describing how one principal overhauled a low-performing school by focusing on improving teacher quality. Within three years, student achievement increased dramatically as teachers became more effective. The conclusion is that effective teachers are the key to student success and readiness for college or careers.