From about 1500 when the political situation of Owari Province was stable, he changed a strategy; changed in New Shogun Yoshizumi AHIKAGA group from Yoshiki group, got Masamoto HOSOKAWA's support, appealed to Akisada UESUGI, Kanto Kanrei (a shogunal deputy for the Kanto region) for cooperation, and planed to attack the Imagawa clan from the east and west.
尾張国内の政情が安定化した明応9年（1500年）頃から義寛は戦略を変更、義材派から新将軍足利義澄派に切り替え、細川政元の支持を得、信濃国小笠原氏、関東管領上杉顕定にも協力を呼びかけ、今川氏を東西から挟撃しようと目論む。