Leading with excellence: Critical leadership dimensions in Lean Six Sigma for business excellence
Abstract
In today’s competitive and complex business environment, achieving business excellence requires a combination of effective methodologies and strong leadership to drive and sustain organizational transformation. Lean Six Sigma (LSS), a proven methodology for improving operational efficiency, relies on effective leadership for successful implementation and lasting impact. This study examines how the integration of Lean, Six Sigma, and Total Quality Management (TQM) shapes leadership strategies that enhance organizational agility, resilience, and responsiveness to market dynamics. It highlights the crucial role of leadership in fostering collaboration, optimizing resource utilization, and cultivating a culture of continuous improvement. The study introduces the Structured Lean Leadership Framework as a strategic tool to develop the leadership capabilities essential for LSS success, addressing challenges such as weak leadership commitment, resistance to change, and communication barriers. Through the application of the DMAIC framework, Key Performance Indicators (KPIs), and Voice of Customer (VOC) analysis, the research aligns LSS with business objectives, customer needs, and sustainability goals. Additionally, it explores how combining LSS with Agile methodologies can improve operational efficiency, governance, and innovation, helping organizations better navigate future challenges. This research offers valuable insights for executives, practitioners, and researchers, supporting leadership development, data-driven decision-making, and long-term value creation. Future studies should focus on validating the Structured Lean Leadership Framework, exploring Agile-LSS integration in regulated industries, and examining the impact of Industry 4.0 technologies on LSS and leadership.
Copyright (c) 2025 Author(s)
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
Abdullahi, C., Tembo, M. (2023). Improving the Efficiency and Effectiveness of Construction Project Planning and Scheduling Using Lean Principles. International Journal of Construction Engineering and Management.
Aij, K. H., & Teunissen, M. (2017). Lean leadership attributes: a systematic review of the literature. Journal of Health Organization and Management, 31(7/8), 713–729. https://doi.org/10.1108/jhom-12-2016-0245
Al Farihi, A., Sumartini, S., & Herdiman, L. (2023). Designing Lean Maintenance Using Total Productive Maintenance Method—A Case Study at Wiring Harness Production. E3S Web of Conferences, 465, 02016. https://doi.org/10.1051/e3sconf/202346502016
Albalkhy, W., & Sweis, R. (2021). Barriers to adopting lean construction in the construction industry: a literature review. International Journal of Lean Six Sigma, 12(2), 210–236. https://doi.org/10.1108/ijlss-12-2018-0144
Albalkhy, W., Sweis, R., & Lafhaj, Z. (2021). Barriers to Adopting Lean Construction in the Construction Industry—The Case of Jordan. Buildings, 11(6), 222. https://doi.org/10.3390/buildings11060222
Alnadi, M., & McLaughlin, P. (2021). Critical success factors of Lean Six Sigma from leaders’ perspective. International Journal of Lean Six Sigma, 12(5), 1073–1088. https://doi.org/10.1108/ijlss-06-2020-0079
Altuğ, M. (2023). Application of six sigma through deep learning in the production of fasteners. International Journal of Lean Six Sigma, 14(7), 1376–1402. https://doi.org/10.1108/ijlss-08-2022-0191
Amjad, M. H. H., Shovon, M. S. S., & Hasan, A. M. (2024). Analyzing Lean Six Sigma Practices in Engineering Project Management: A Comparative Analysis. Innovatech Engineering Journal, 1(01), 245–255. https://doi.org/10.70937/itej.v1i01.27
Androniceanu, A., Enache, I. C., Valter, E. N., et al. (2023). Increasing Energy Efficiency Based on the Kaizen Approach. Energies, 16(4), 1930. https://doi.org/10.3390/en16041930
Condé, G. C. P., Oprime, P. C., Pimenta, M. L., et al. (2023). Defect reduction using DMAIC and Lean Six Sigma: a case study in a manufacturing car parts supplier. International Journal of Quality & Reliability Management, 40(9), 2184–2204. https://doi.org/10.1108/ijqrm-05-2022-0157
Connor, D. O. (2022). Leading from the middle: how team leaders implement lean success factors. International Journal of Lean Six Sigma, 13(2), 253–275. https://doi.org/10.1108/ijlss-11-2020-0194
Dombrowski, U., & Mielke, T. (2013). Lean Leadership—Fundamental Principles and their Application. Procedia CIRP, 7, 569–574. https://doi.org/10.1016/j.procir.2013.06.034
Dombrowski, U., & Mielke, T. (2014). Lean Leadership—15 Rules for a Sustainable Lean Implementation. Procedia CIRP, 17, 565–570. https://doi.org/10.1016/j.procir.2014.01.146
Dursun, M., & Goker, N. (2022). Evaluation of Project Management Methodologies Success Factors Using Fuzzy Cognitive Map Method: Waterfall, Agile, And Lean Six Sigma Cases. International Journal of Intelligent Systems and Applications in Engineering, 10(1), 35–43. https://doi.org/10.18201/ijisae.2022.265
Eldeep A., Farag M., El-Hafez, L. (2022). Using BIM as a lean management tool in construction processes—A case study. Ain Shams Engineering Journal, 13(2), 101556. https://doi.org/10.1016/j.asej.2021.07.009
Enache, I. C., Chivu, O. R., Rugescu, A. M., et al. (2023). Reducing the Scrap Rate on a Production Process Using Lean Six Sigma Methodology. Processes, 11(4), 1295. https://doi.org/10.3390/pr11041295
Erne, R. (2022). How to Apply Lean Thinking in Project Management. Springer.
Gatell, I. S., & Avella, L. (2024). Impact of Industry 4.0 and circular economy on lean culture and leadership: Assessing digital green lean as a new concept. European Research on Management and Business Economics, 30(1), 100232. https://doi.org/10.1016/j.iedeen.2023.100232
Gomaa, A. H. (2022). Improving Manufacturing Efficiency and Effectiveness Using Lean Six Sigma Approach. International Journal of Technology and Engineering Studies, 8(1). https://doi.org/10.20469/ijtes.8.40004-1
Gomaa, A. H. (2023a). A Systematic Review of Lean Six Sigma in Manufacturing Domain. Engineering Research Journal (Shoubra), 52(4), 139–148. https://doi.org/10.21608/erjsh.2023.217424.1183
Gomaa, A. H. (2023b). Improving Supply Chain Management Using Lean Six Sigma: A Case Study. International Journal of Applied and Physical Sciences. https://doi.org/10.20469/ijaps.9.50002
Gomaa, A. H. (2023c). Maintenance Process Improvement Framework Using Lean Six Sigma: A Case Study. International Journal of Business and Administrative Studies.
Gomaa, A. H. (2023d). Operational Excellence for Improving Manufacturing Performance Using Lean Six Sigma. International Journal of Business and Administrative Studies.
Gomaa, A. H. (2024). Improving Productivity and Quality of a Machining Process by Using Lean Six Sigma Approach: A Case Study. Engineering Research Journal (Shoubra), 53(1), 1–16. https://doi.org/10.21608/erjsh.2023.226742.1194
Gomaa, A. H. (2025a). Lean 4.0: A Strategic Roadmap for Operational Excellence and Innovation in Smart Manufacturing. International Journal of Emerging Science and Engineering, 13(5), 1–20. https://doi.org/10.35940/ijese.d2592.13050425
Gomaa, A. H. (2025b). LSS 4.0: A Conceptual Framework for Integrating Lean Six Sigma and Industry 4.0 for Smart Manufacturing Excellence. Indian Journal of Management and Language, 5(1), 8–29. https://doi.org/10.54105/ijml.h1810.05010425
Gomaa, A. H. (2025c). Strategic Lean Leadership in Lean Six Sigma Projects for Manufacturing Excellence. International Business & Economics Studies, 7(2), p125. https://doi.org/10.22158/ibes.v7n2p125
Habib, M. A., Rizvan, R., & Ahmed, S. (2023). Implementing lean manufacturing for improvement of operational performance in a labeling and packaging plant: A case study in Bangladesh. Results in Engineering, 17, 100818. https://doi.org/10.1016/j.rineng.2022.100818
Ikuabe, M., Aigbavboa, C., Aghimien, D., et al. (2022). Bolstering measures for adopting lean construction in the South African construction industry. International Journal of Productivity and Quality Management, 36(4), 589. https://doi.org/10.1504/ijpqm.2022.124901
Jason, A., Wedmore, J., Okunola, A., Stacey, T. (2025). The Future of Lean Six Sigma: Innovations and Trends Impacting Engineering Project Management. Ladoke Akintola University of Technology.
Jiménez-Delgado, G., Quintero-Ariza, I., Romero-Gómez, J. (2023). Implementation of lean six sigma to improve the quality and productivity in textile sector: A case study. In: International Conference on Human-Computer Interaction. Springer.
Jurewicz1, D., Dabrowska1, M., Burduk, A. (2024). Implementation of Total Productive Maintenance (TPM) to Improve Overall Equipment Effectiveness (OEE)—Case Study. LNME.
Karakose, T., Papadakis, S., Tülübaş, T., et al. (2022). Understanding the Intellectual Structure and Evolution of Distributed Leadership in Schools: A Science Mapping-Based Bibliometric Analysis. Sustainability, 14(24), 16779. https://doi.org/10.3390/su142416779
Karakose, T., Tülübaş, T., Papadakis, S., et al. (2023). Evaluating the Intellectual Structure of the Knowledge Base on Transformational School Leadership: A Bibliometric and Science Mapping Analysis. Education Sciences, 13(7), 708. https://doi.org/10.3390/educsci13070708
Krishnan, S., Mathiyazhagan, K., & Sreedharan, V. R. (2020). Developing a Hybrid Approach for Lean Six Sigma Project Management: A Case Application in the Reamer Manufacturing Industry. IEEE Transactions on Engineering Management, 69(6), 2897–2914. https://doi.org/10.1109/tem.2020.3013695
Kumar, P., Bhamu, J., Goel, S., et al. (2024). Interpretive structural modeling of lean six sigma critical success factors in perspective of industry 4.0 for Indian manufacturing industries. International Journal of System Assurance Engineering and Management, 15(8), 3776–3793. https://doi.org/10.1007/s13198-024-02375-y
Laureani, A., Antony, J. (2019). Leadership and Lean Six Sigma: a systematic literature review. Total Quality Management & Business Excellence, 30(1–2), 53–81. https://doi.org/10.1080/14783363.2017.1288565
Lima, B. F., Neto, J. V., Santos, R. S., et al. (2023). A Socio-Technical Framework for Lean Project Management Implementation towards Sustainable Value in the Digital Transformation Context. Sustainability, 15(3), 1756. https://doi.org/10.3390/su15031756
Macalinao, J. C. (2024). Implementation of Total Productive Maintenance in a Local Pharmaceutical Manufacturing Company in the Philippines. Matrix Science Pharma, 7(4), 119-123. https://doi.org/10.4103/mtsp.mtsp_18_23
McDermott, O., ODwyer, K., Noonan, J., et al. (2024). The development of a lean six sigma and BIM framework for enhancing off-site manufacturing. International Journal of Lean Six Sigma, 15(8), 50–69. https://doi.org/10.1108/ijlss-02-2023-0020
Mittal, A., Gupta, P., Kumar, V., et al. (2023). The performance improvement analysis using Six Sigma DMAIC methodology: A case study on Indian manufacturing company. Heliyon, 9(3), e14625. https://doi.org/10.1016/j.heliyon.2023.e14625
Moradi, S., & Sormunen, P. (2024). Integrating lean construction with BIM and sustainability: a comparative study of challenges, enablers, techniques, and benefits. Construction Innovation, 24(7), 188–203. https://doi.org/10.1108/ci-02-2023-0023
Oliveira, C., & Lima, T. M. (2023). Setup Time Reduction of an Automotive Parts Assembly Line Using Lean Tools and Quality Tools. Eng, 4(3), 2352–2362. https://doi.org/10.3390/eng4030134
Rampasso, I. S. (2024). Lean leadership: a bibliometric analysis. Benchmarking: An International Journal.
Rodriguês, I., & Alves, W. (2025). A proposed conceptual model for linking Lean thinking and project management in the IT sector. International Journal of Lean Six Sigma, 16(2), 262–295. https://doi.org/10.1108/ijlss-11-2023-0198
Sakr, T. A., & Nassar, A. H. (2022). Improving Project Management at the Design Phase by Applying Lean Six Sigma as a Troubleshooting System. IEEE Engineering Management Review, 50(3), 213–227. https://doi.org/10.1109/emr.2022.3191779
Sasikumar, A., Acharya, P., Nair, M., et al. (2023). Applying lean Six Sigma for waste reduction in a bias tyre manufacturing environment. Cogent Business & Management, 10(2). https://doi.org/10.1080/23311975.2023.2228551
Satolo, E., Ussuna, G. A., & Mac-Lean, P. A. B. (2023). Lean Six Sigma Tools for Efficient Milking Processes in Small-Scale Dairy Farms. Ingeniería e Investigación, 43(3), e101868. https://doi.org/10.15446/ing.investig.101868
Shafiq, M., Lasrado, F., & Hafeez, K. (2019). The effect of TQM on organisational performance: empirical evidence from the textile sector of a developing country using SEM. Total Quality Management & Business Excellence, 30(1–2), 31–52. https://doi.org/10.1080/14783363.2017.1283211
Shannon, N., Trubetskaya, A., Iqbal, J., et al. (2023). A total productive maintenance & reliability framework for an active pharmaceutical ingredient plant utilising design for Lean Six Sigma. Heliyon, 9(10), e20516. https://doi.org/10.1016/j.heliyon.2023.e20516
Singh, M., & Rathi, R. (2024). Implementation of environmental lean six sigma framework in an Indian medical equipment manufacturing unit: a case study. The TQM Journal, 36(1), 310–339. https://doi.org/10.1108/tqm-05-2022-0159
Srimathi, K., & Narashiman, K. (2021). Leadership styles and their impact on lean six sigma practices in Indian industries. South African Journal of Industrial Engineering, 32(1). https://doi.org/10.7166/32-1-2323
Srinivasan, K., Sarulkar, P., & Yadav, V. K. (2024). Operational excellence of the steel industry using the Lean Six Sigma approach: a case study. International Journal of Quality & Reliability Management, 41(3), 826–849. https://doi.org/10.1108/ijqrm-08-2022-0250
Thakkar, H., & Shah, V. A. (2021). Barriers to implementation of lean construction techniques in Gujarat construction industry. International Journal of Engineering Technologies and Management Research, 8(4), 17–24. https://doi.org/10.29121/ijetmr.v8.i4.2021.905
Toki, G. F. I., Ahmed, T., Hossain, M. E., et al. (2023). Single Minute Exchange Die (SMED): A sustainable and well-timed approach for Bangladeshi garments industry. Cleaner Engineering and Technology, 12, 100592. https://doi.org/10.1016/j.clet.2022.100592
Trubetskaya, A., McDermott, O., & Brophy, P. (2023). Implementing a customised Lean Six Sigma methodology at a compound animal feed manufacturer in Ireland. International Journal of Lean Six Sigma, 14(5), 1075–1095. https://doi.org/10.1108/ijlss-08-2022-0169
Trubetskaya, A., Ryan, A., Powell, S., et al. (2024). Utilising a hybrid DMAIC/TAM model to optimise annual maintenance shutdown performance in the dairy industry: a case study. International Journal of Lean Six Sigma, 15(8), 70–92. https://doi.org/10.1108/ijlss-05-2023-0083
Tsarouhas, P., & Sidiropoulou, N. (2024). Application of Six Sigma methodology using DMAIC approach for a packaging olives production system: a case study. International Journal of Lean Six Sigma, 15(2), 247–273. https://doi.org/10.1108/ijlss-06-2022-0140
Utama, D. M., & Abirfatin, M. (2023). Sustainable Lean Six-sigma: A new framework for improve sustainable manufacturing performance. Cleaner Engineering and Technology, 17, 100700. https://doi.org/10.1016/j.clet.2023.100700
West, A., Okafor, B. (2023). Implementation of Lean Six Sigma for Strategic Maintenance Management. International Journal of Recent Scientific Research.
Yirci, R., Karakose, T., Kocabas, I., et al. (2023). A Bibliometric Review of the Knowledge Base on Mentoring for the Professional Development of School Administrators. Sustainability, 15(4), 3027. https://doi.org/10.3390/su15043027
