Redefining Project Success: The Role of Mindset, Value Perception, and Leadership in Contemporary Project Management

Violet Swierkot, MSc, MSP®; Doctoral Researcher, University of Northampton

Think & Grow Consulting Ltd

Abstract

The traditional definition of project success, based on the iron triangle of cost, time, and scope, is increasingly insufficient in the context of contemporary organisational transformation. This article critically evaluates the evolving definition of project success, drawing on recent research from the Project Management Institute (PMI, 2025), and situates these findings within the broader academic literature on value, leadership, and project management maturity. The article argues that project success is now primarily defined by value creation rather than delivery efficiency, and that the mindset and leadership behaviours of project professionals are key determinants of success. The findings have significant implications for project governance, professional development, and organisational strategy, particularly in complex sectors such as healthcare and digital transformation.

Introduction

Project management has traditionally defined success using the “iron triangle” of time, cost, and scope (Atkinson, 1999). While these criteria provide measurable delivery indicators, they fail to capture whether projects generate meaningful organisational value. Increasingly, scholars and practitioners argue that success should be evaluated based on outcomes and benefits rather than delivery performance alone (Müller and Turner, 2007; Serra and Kunc, 2015).

Recent research by the Project Management Institute (PMI, 2025) reinforces this shift, defining project success as:

“Delivering value that is worth the effort and expense.”

This definition represents a fundamental paradigm shift in project management. This article critically examines this emerging value-based definition of project success and explores the role of mindset, leadership, and professional maturity in influencing project outcomes.

The Limitations of the Traditional Iron Triangle

The iron triangle model has dominated project success evaluation for decades (Atkinson, 1999). However, this framework has been widely criticised for its narrow focus on operational efficiency rather than strategic effectiveness (Shenhar and Dvir, 2007). Projects can meet all traditional criteria and still fail organisationally. For example, information system implementations frequently achieve technical delivery success but fail to achieve user adoption or intended business benefits (Flyvbjerg, 2014). This reflects a critical distinction between:

Delivery success and Value success as Serra and Kunc (2015) argue, project success must be evaluated in terms of benefits realisation and strategic contribution.

The Emergence of Value-Based Project Success

PMI’s global research programme introduces a value-centred framework supported by the Net Project Success Score (NPSS), which measures stakeholder perception of value (PMI, 2025). This approach aligns with benefits management theory, which emphasises that project success depends on achieving intended organisational outcomes rather than simply delivering outputs (Bradley, 2010). Importantly, PMI’s findings demonstrate that:

Projects perceived as delivering greater value are significantly more likely to be considered successful. This reinforces the argument that project success is socially constructed and influenced by stakeholder perception (Baccarini, 1999).

The Role of Mindset in Project Success

One of PMI’s most significant findings is that professional mindset strongly influences project success outcomes (PMI, 2025).

The M.O.R.E. framework identifies four key behavioural expectations:

• Manage perceptions

• Own success

• Relentlessly reassess

• Expand perspective

Projects where professionals consistently demonstrated these behaviours achieved significantly higher success scores. This finding aligns with leadership theory, which emphasises the importance of proactive leadership behaviours in managing complexity and uncertainty (Müller and Turner, 2010). Project managers who adopt a leadership mindset rather than a purely administrative role are more effective in delivering successful outcomes (Crawford, 2005). PMI’s research highlights a clear relationship between professional maturity, leadership responsibility, and project success, demonstrating that projects are more likely to deliver meaningful outcomes when project professionals take ownership of value rather than focusing solely on delivery tasks (PMI, 2025). However, within many organisations, project managers are held accountable for outcomes without having equivalent formal authority to influence strategic decisions, creating a structural tension between responsibility and empowerment (Hobbs and Aubry, 2008). This dynamic is particularly evident in complex and highly governed environments, where decision-making autonomy may be constrained. In response, leadership maturity becomes a critical capability, enabling project professionals to influence stakeholders, navigate organisational complexity, and guide projects toward value-driven outcomes despite structural limitations (Turner and Müller, 2005). At the same time, modern projects operate in conditions of rapid change and uncertainty, requiring adaptive leadership rather than rigid adherence to predefined plans (World Economic Forum, 2025). PMI’s findings reinforce that successful professionals continuously reassess direction, respond to emerging conditions, and adjust delivery approaches to maximise value, reflecting contingency theory’s emphasis on situational flexibility (Shenhar, 2001). Consequently, the evolving definition of project success has important implications for practice: organisations must place greater emphasis on value-based success measures, while project professionals must develop leadership, strategic thinking, and adaptive capabilities alongside technical expertise, particularly in sectors undergoing significant transformation where projects play a central role in organisational performance and long-term sustainability.

Conclusion

The definition of project success has undergone a significant evolution, shifting from a narrow focus on the iron triangle of cost, time, and scope towards a broader, value-centred perspective. While delivery performance remains an important operational foundation, it is no longer sufficient as the primary indicator of success. As the literature and recent PMI (2025) research demonstrate, the ultimate measure of project success lies in the extent to which projects create meaningful value and contribute to organisational objectives. This shift reflects the growing complexity of organisational environments, where projects serve as key mechanisms for enabling transformation, innovation, and strategic change.

This article has highlighted that mindset and leadership behaviour play a critical role in determining whether projects achieve this value. Frameworks such as PMI’s M.O.R.E. model reinforce the importance of professional ownership, stakeholder alignment, and adaptive leadership in navigating uncertainty and maintaining focus on intended outcomes. These findings align with broader leadership and project management literature, which emphasises that successful project professionals extend their role beyond technical coordination to include strategic influence and value stewardship (Crawford, 2005; Müller and Turner, 2010).

The implications for practice are substantial. Organisations must reconsider how they define, measure, and govern project success, placing greater emphasis on benefits realisation and stakeholder value rather than delivery metrics alone. At the same time, project professionals must develop not only technical competence but also leadership maturity, strategic awareness, and adaptive capability to effectively operate within increasingly complex and dynamic environments. This is particularly relevant in sectors undergoing rapid transformation, where the effectiveness of projects directly influences organisational performance and long-term sustainability.

In conclusion, project success can no longer be understood purely as the efficient delivery of predefined outputs. Instead, it must be recognised as the successful creation of value through leadership, alignment, and adaptability. As organisational reliance on projects continues to grow, the ability of project professionals to lead with a value-focused mindset will become an increasingly critical factor in determining whether projects and the organisations they serve ultimately succeed.

References

Atkinson, R. (1999) ‘Project management: cost, time and quality’, International Journal of Project Management, 17(6), pp. 337–342.

Baccarini, D. (1999). The Logical Framework Method for Defining Project Success. Project Management Journal ,30, 25 - 32. https://doi.org/10.1177/875697289903000405

Crawford, L. (2005) ‘Senior management perceptions of project management competence’, International Journal of Project Management, 23(1), pp. 7–16. http://dx.doi.org/10.1016/j.ijproman.2004.06.005

Flyvbjerg, B. (2014) ‘What you should know about megaprojects’, Project Management Journal, 45(2), pp. 6–19.https://doi.org/10.1002/pmj.21409

Hobbs, B. and Aubry, M. (2008) ‘Organizational project management’, Project Management Journal, 39(1), pp. S69–S76.

Sithambaram, J. ., Md Nasir, M. H. N. B., & Ahmad, R. . (2021). A COMPILATION OF FACTORS ASSOCIATED TO THE GOVERNANCE AND MANAGEMENT OF AGILE PROJECTS: A SYSTEMATIC LITERATURE REVIEW. Malaysian Journal of Computer Science, 34(3), 266–307. https://doi.org/10.22452/mjcs.vol34no3.4

Müller, R. and Turner, R. (2007) ‘Matching project manager leadership style to project type’, International Journal of Project Management, 25(1), pp. 21–32.https://doi.org/10.1016/j.ijproman.2006.04.003

Müller, R. and Turner, R. (2010) Leadership Competency Profiles of Successful Project Managers. Project Management Journal. https://doi.org/10.1016/j.ijproman.2009.09.003

PMI (2025) Project Success Report. Project Management Institute.

Serra, C. and Kunc, M. (2015) ‘Benefits realisation management’, International Journal of Project Management, 33(1), pp. 53–66.

Shenhar, A. (2001) ‘One size does not fit all projects’, Management Science, 47(3), pp. 394–414.

Shenhar, A. and Dvir, D. (2007) Reinventing Project Management. Boston: Harvard Business School Press.

World Economic Forum (2025) Future of Jobs Report.

Zid, C., Kasim, N., & Soomro, A., 2020. Effective project management approach to attain project success, based on cost-time-quality. International Journal of Project Organisation and Management. https://doi.org/10.1504/ijpom.2020.10027903.

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