Historically, teachers have never had to prove their worth through metrics. Yet with the standards in US education changing, teachers are being held accountable more than ever before. Much of a teacher’s profession is based on relationship building with their students. In addition, many teaching techniques are made effective through “knowing students.” Quite often this knowledge is inherent, intuitive, and tacit. The ability for teachers to know their students, have confidence in their teaching skills and, articulate their strengths and weaknesses, is critical to teacher effectiveness. However most of the feedback that drives effectiveness is being led by others, and not by teachers themselves. This results in teachers performing a balancing act between the art of the relationship (what they consider to be the key to effective teaching) and having to prove effectiveness through explicit, system-defined measures.