This report was conducted over a two-year period, at the recommendation of the Provost's Ad Hoc Advisory Committee. The report concluded that the Cluster Hiring Initiative (CHI) is a success and is meeting its objectives. In only a few years, the CHI has created or strengthened 49 areas of academic interdisciplinary inquiry that match the teaching, research and outreach productivity of departmentally-based faculty. It strongly recommended the campus continue to support the cluster interdisciplinary efforts across campus as we develop methods for ongoing evaluation of cluster programs over time. Since many of the insights gained through evaluating the clusters also apply to interdisciplinary efforts in general, the report also made a number of recommendations to foster the environment for other interdisciplinary efforts across the campus.