From The Asia Times:
Department, which handles the appointment and promotion of senior party and government officials, is directly under Zeng‘s supervision.
Given this portfolio, it is logical for Zeng to be assigned to head the preparatory group on personnel affairs. Nevertheless, it still shows that Zeng, who used to be regarded as a protege of Jiang and a key member of the so-called Shanghai clique, has won the trust and become an ally of Hu. The reshuffle of personnel in the upcoming party meeting is so important to Hu that it would simply be unthinkable to have a rival in charge. Hu needs loyal cadres to implement his line. Or, as Mao put it: “Once the party line is established, cadres become the key factor” for implementation of the line. [Full Text]