The number of school districts using instructional coaches is growing at a staggering rate. Coaching is becoming popular, in part, because many educational leaders recognize the old form of professional development, built around traditional in-service sessions for teachers, simply does not affect student achievement. By offering support, feedback, and intensive, individualized professional learning, coaching promises to be a better way to improve instruction in schools. This article discusses instructional coaching as well as the eight factors that can increase the likelihood that coaching will be a real fix for a school. Instructional coaching holds much potential for improving the way teachers teach and the way students learn, but that potential will only be realized if leaders plan their coaching program with care. When planned carefully and when the success factors are addressed, instructional coaching can begin to deliver on the promise of making a real difference in schools.