This article explores whether the CAMEL method and the Insider Movement (IM) paradigm share similar philosophies, approaches, and underlying presuppositions. After a brief overview of the CAMEL method and its contexts (twentieth-century missions, the International Mission Board, and the Bangladeshi context), I will discuss four themes common to CAMEL and IM. We will see that CAMEL and IM share similar assumptions yet with different outworkings. Both seem to share the sentiment of the Catholic Louis Massignon, chief architect of Vatican II’s approach to non-Christian religions: “Rather than destroy Islam, might it then not be better to expand it? … If a Moslem followed his soul’s promptings to the end, he would come to Christ.”