This paper by David J. Katzelnick, MD and Mark. D. Williams, MD explores large-scale dissemination of the Collaborative Care model. The authors agree that there is enough of an evidence-base proving that the model works and that the problem lies in the implementation science and dissemination knowledge base. They cite the Mental Health Integration Program [1], COMPASS [2], and DIAMOND [3] implementations when discussing successful large-scale dissemination efforts.