Who is PRIMARILY accountable for delivering the benefits of an IT-enabled investment program to the enterprise?

The program manager is accountable for the successful delivery of the program outputs (e.g., systems, processes) within scope, budget, and timeline, but not typically for the ultimate realization of business benefits.

The IT steering committee chair provides governance and oversight, guiding strategic alignment and resource allocation, but typically isn't accountable for the direct realization of specific program benefits.

The CIO is accountable for overall IT strategy and operations, including the effective deployment of IT resources, but specific program benefits are usually owned by the business unit that drives the initiative.

The business sponsor, often a senior business executive, champions the IT-enabled program and is ultimately responsible for realizing the strategic business benefits that the investment is intended to achieve. They articulate the business need, secure funding, and ensure the delivered solution aligns with business goals, making them accountable for the value derived from the investment.