Deconcentration, as an instrument for central local policy coordination, requires consistent, accountable, and adaptive oversight. This study addresses the problem of suboptimal effectiveness of the Governor as the Central Government’s Representative (GWPP) Team in West Java in overseeing deconcentrated functions, particularly regarding field implementation consistency, process efficiency, and the uneven substance and supporting evidence of reports. The study aims to assess the GWPP Team’s effectiveness using Gibson, Ivancevich, and Donnelly’s (2003) organizational effectiveness framework across five dimensions (production, adaptation, efficiency, satisfaction, and development) and to identify enabling and constraining factors. A descriptive qualitative approach was employed, drawing on internship-based observation, interviews, literature review, and document analysis, including the use of the SIP-GWPP reporting system integrated with E-Monev Adwil. The findings indicate that the GWPP Team is generally effective in meeting reporting accountability requirements and producing verifiable administrative outputs; however, effectiveness remains below optimal due to fiscal dynamics and financial administrative adjustments, inconsistent report quality, and limitations in internal governance and human resource competencies. Strong regulatory foundations, integrated digital reporting, and strengthened intergovernmental coordination serve as key enablers, while internal work mechanisms (reward/punishment), budget constraints, and competency gaps constitute major barriers. The study underscores the need for standardized work procedures, budget risk management, and needs-based capacity development to enhance sustainable deconcentration oversight and central local coordination.