The balance of a PMO's mix of functions is fundamental because:

The fundamental purpose of balancing a PMO's mix of functions is to ensure it delivers demonstrable value to a diverse range of organizational stakeholders. A well-balanced PMO combines supportive functions (e.g., training, templates), controlling functions (e.g., governance, compliance), and strategic functions (e.g., portfolio management). This balanced approach ensures that project teams, functional managers, and executive leadership all perceive the PMO as a valuable partner. This widespread recognition and perceived value are critical for the PMO's long-term sustainability, influence, and organizational integration. An unbalanced PMO risks being viewed narrowly, for instance, as purely administrative or overly bureaucratic, thereby failing to secure broad stakeholder buy-in.

A. This is an outcome of a specific PMO function (portfolio management), not the fundamental reason for balancing the entire mix of functions.
B. This is an internal operational benefit for the PMO itself, not the primary strategic reason for its functional design from the organization's perspective.
D. This is a budgetary consideration. While important, managing cost distribution is a secondary operational detail, not the core strategic driver for balancing value-delivery functions.

1. Aubry

M.

& Hobbs

B. (2011). A Fresh Look at the Contribution of Project Management to Organizational Value. Project Management Journal

42(1)

3–16. In their research

the authors establish that a PMO's value is not inherent but is constructed through its interactions and the services it provides to stakeholders. A balanced set of functions is necessary to create this value proposition across the organization. The concept is detailed in the section "The PMO as a Value-Creating Business Unit

" which emphasizes that PMOs must "justify their existence by creating value for their host organization" (p. 8)

a feat achieved by serving varied stakeholder needs.

DOI: https://doi.org/10.1002/pmj.20212

2. Project Management Institute. (2017). The State of the Project Management Office (PMO) 2017. PMI

Inc. This report highlights that high-performing PMOs are those that align their capabilities and services (i.e.

their mix of functions) to the strategic needs of the business. On page 4

it states

"The most important thing is that the PMO is seen as a value-adding partner to the business." This directly links the PMO's activities to stakeholder perception of value

which is the essence of the correct answer.

3. Müller

R.

Drouin

N.

& Sankaran

S. (2019). Modeling Organizational Project Management. Project Management Journal

50(4)

499–513. This article discusses how the configuration of a PMO (its functions and structures) must be tailored to the organizational context to be effective. The underlying principle is that this tailored balance of functions is what allows the PMO to deliver recognized value to its specific set of stakeholders

supporting its legitimacy and success.

DOI: https://doi.org/10.1177/8756972819847876