Which strategic planning approach would be MOST appropriate for a large enterprise to follow when revamping its IT services?

Addressing gaps in IT-related risk management is an important operational concern but represents a specific area of focus rather than a comprehensive strategic approach for revamping all IT services.

Focusing on business innovation is a valuable strategic outcome but is too narrow as a primary strategic planning approach for a full IT service revamp, which encompasses efficiency, stability, and alignment, not just innovation.

For a large enterprise, revamping IT services strategically requires ensuring that IT capabilities are precisely calibrated and scaled to directly support and enable current and future business requirements. This approach emphasizes optimizing IT's contribution to business value by ensuring services are neither under- nor over-provisioned, and directly support business objectives and growth.

Adhering to on-time and on-budget IT service delivery is a measure of project execution success, not a strategic planning approach for the holistic revamp and alignment of IT services with business.