The Office of Personnel Management (OPM) has made a significant impact on the strategic management of human capital government-wide. OPM's reorganization facilitated this impact by creating three organizations to focus on assisting and monitoring agencies' distinct but interrelated needs for guidance, oversight, and support in their human capital efforts. Working together, these three organizations give OPM the capacity to meet virtually any human capital challenge agencies face. In the context of the passage, which one of the following could best be substituted for oversight without significantly changing its meaning?