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.