“…Pressman and Wildavsky’s legendary pioneering study of implementation from 1973, Implementation: How Great Expectations Are Dashed in Oakland , highlights implementation failure and points to the “complexity of joint actions” as the key implementation problem (Pressman and Wildavsky, 1973; Winter, 2013). Insights from implementation research lead to expectations of implementation of IC as a critical case because IC is defined in “joint actions” (Kodner and Spreeuwenberg, 2002; Shaw et al , 2011; Goodwin, 2013, 2016; Kaehne, 2018; Van Kemenade and van der Vlegel-Brouwer, 2019; Miller and Stein, 2020). In accordance with this expectation, multiple studies have documented barriers to IC (Minkman, 2012; Maruthappu et al , 2016; Overbeck et al , 2016; Auschra, 2018; Rodgers et al , 2018; Miller and Stein, 2020; Raus et al , 2020), and psychiatric/somatic IC seems to be extra challenging for implementation (Laursen et al , 2009; Knowles et al , 2013; Rodgers et al , 2018).…”