On Sept. 9, the main opposition Liberal Democratic Party chose new party executives: LDP President Sadakazu Tanigaki tapped former infrastructure and transport minister Nobuteru Ishihara as secretary general, the party's No. 2 post, and former environment and defense minister Yuriko Koike as head of the party's General Council and retained former defense minister Shigeru Ishiba as head of the party's Policy Research Council.

The three are well-versed in policy matters and well-known in public because of their TV appearances. In their 50s, they also represent a younger generation of LDP lawmakers. (Mr. Tadamori Oshima, 63, was moved from secretary general to the more honorary post of vice president.) Ms. Koike is the first woman to assume a top LDP executive post.

Mr. Tanigaki, who became LDP president a year ago, has been criticized for what some say is his inability to sell the LDP to people. Through the new leadership setup, he apparently aims to improve the party's image and create the impression that the LDP is reliable in policy matters.