Kay, RobertHalpin, Darren2026-01-012026-01-011092-7026https://hdl.handle.net/1885/733799624In this paper we suggest that recent approaches to dealing with complexity within the systems paradigm fail to deal adequately with the influence of the practitioner in the execution of a methodological inquiry. This will be explored through a brief critique of Total Systems Intervention (TSI). In constructing our argument we will identify the practitioner, the situation under study and the theory informing the practitioner as the three components of methodology construction.9enCritical systems methodologiesMethodology constructionPractitionerSystems practice199910.1002/(SICI)1099-1743(199905/06)16:3<273::AID-SRES231>3.0.CO;2-C0033243414