Global perspectives on operational excellence: unveiling critical failure factors and sustainable pathways Antony, Jiju Sony, Michael Jayaraman, Raja Swarnakar, Vikas da Luz Tortorella, Guilherme Garza Reyes, Jose Arturo Rathi, Rajeev Gutiérrez Gutiérrez, Leopoldo McDermott, Olivia Lameijer, Bart Alex Six Sigma Lean Six Sigma Total quality management Purpose The purpose of this global study is to investigate the critical failure factors (CFFs) in the deployment of operational excellence (OPEX) programs as well as the key performance indicators (KPIs) that can be used to measure OPEX failures. The study also empirically analyzes various OPEX methodologies adopted by various organizations at a global level. Design/methodology/approach This global study utilized an online survey to collect data. The questionnaire was sent to 800 senior managers, resulting in 249 useful responses. Findings The study results suggest that Six Sigma is the most widely utilized across the OPEX methodologies, followed by Lean Six Sigma and Lean. Agile manufacturing is the least utilized OPEX methodology. The top four CFFs were poor project selection and prioritization, poor leadership, a lack of proper communication and resistance to change issues. Research limitations/implications This study extends the current body of knowledge on OPEX by first delineating the CFFs for OPEX and identifying the differing effects of these CFFs across various organizational settings. Senior managers and OPEX professionals can use the findings to take remedial actions and improve the sustainability of OPEX initiatives in their respective organizations. Originality/value This study uniquely identifies critical factors leading to OPEX initiative failures, providing practical insights for industry professionals and academia and fostering a deeper understanding of potential pitfalls. The research highlights a distinctive focus on social and environmental performance metrics, urging a paradigm shift for sustained OPEX success and differentiating itself in addressing broader sustainability concerns. By recognizing the interconnectedness of 12 CFFs, the study offers a pioneering foundation for future research and the development of a comprehensive management theory on OPEX failures. 2024-05-15T11:52:45Z 2024-05-15T11:52:45Z 2024-03-14 info:eu-repo/semantics/article Antony, J., Sony, M., Jayaraman, R., Swarnakar, V., Tortorella, G.d.L., Garza-Reyes, J.A., Rathi, R., Gutierrez, L., McDermott, O. and Lameijer, B.A. (2024), "Global perspectives on operational excellence: unveiling critical failure factors and sustainable pathways", International Journal of Quality & Reliability Management, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/IJQRM-01-2024-0013 https://hdl.handle.net/10481/91831 10.1108/IJQRM-01-2024-0013 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Emerald