A potentially useful one-sentence(!) intervention for making a case to run a statistical matching evaluation rather than a randomised controlled trial:
“Matching can be thought of as a technique for finding approximately ideal experimental data hidden within an observational data set.”
– King, G., & Nielsen, R. (2019, p. 442) [Why Propensity Scores Should Not Be Used for Matching. Political Analysis, 27(4), 435–454]