In 1999, Okada signed with J2 League club Consadole Sapporo. In 2000, he led the club to won J2 League and promoted the club to J1 League. He resigned end of 2001 season. In 2003, he signed with Yokohama F. Marinos. The club won the league champions and he was also selected "Best Manager awards" for 2 years in a row in 2003 and 2004. From 2005, the club performance was sluggish and he resigned in August 2006.