Takeshi Okada
Ono became assistant coach of Japan national team under the manager; Takeshi Okada from 1997 to 1998. From 1999, he became assistant coach of Japan U-20 national team. In 2002, he became manager of Sanfrecce Hiroshima. In 2012, he became assistant coach of Chinese club; Hangzhou Greentown under the manager; Takeshi Okada. In 2014, he became manager Roasso Kumamoto. In 2016, he became assistant coach of Hangzhou Greentown again.