Background: ICU care is inherently multiprofessional, and communication failures and team dysfunction are implicated in a substantial proportion of preventable adverse events in critical care. However,et training frameworks remain fragmented, built around individual brilliance and siloed disciplines. Aim: To present an integrated, evidence-based framework for building, training, assessing, and sustaining high-performance ICU teams. Methods: Narrative review using a targeted, non-systematic search of the databases PubMed, Embase, Scopus, and Web of Science for manuscripts published between 2000 and June 2026. Grey literature from ESICM, SCCM, ANZICS was also searched. Data were synthesized by the authors from complex clinical scenarios and team behaviors, rather than by pooling empirical data. Themes, communication patterns, and organizational challenges emerged organically from the selected texts and case descriptions. Key findings: ICU team effectiveness rests on four pillars: deliberate multiprofessional composition with explicit role delineation; multimodal training combining simulation, just-in-time training, and structured debriefing; rigorous measurement through structure, process, and outcome indicators; and organizational conditions, including unit design and psychological safety, that sustain safety culture and provider wellbeing. Current evidence remains heterogeneous, particularly across cultural, organizational, and resource contexts, limiting direct comparison across settings. Building on these pillars, practical recommendations for ICU leaders to translate this framework into daily practice are proposed. Conclusion: A whole-team approach to ICU team selection, training and support, extending beyond physician-centric models, is clinically necessary and is operationally feasible when adapted to local resources and organizational conditions. The framework presented is adaptable to diverse and various intensive care settings, with each pillar mapped to actionable strategies for team composition, training, assessment, and sustainability.

--

Teamwork,Simulation,Crisis resource management,Human factors,Safety culture,Leadership,Debriefin,Psychological safety Critical care,Consolidated framework for implementation research (CFIR)

• Clinical Medicine - Medical and Health Sciences