Since 2002, $220 million have been spent on the financially beleaguered park. In an effort to turn things around, Irvine City Council members cleaned house during Wednesday night's eight-hour meeting.
They voted in favor of taking a closer look at the park's books since 2005 and getting rid of nearly half of its board members.
The council also terminated contracts with two firms that were paid millions for consulting and marketing.
Members were slated to meet sometime Thursday to select new leadership for the Great Park's Board of Directors - a new chair and a new vice chair were expected to be elected.
Officials had intended to turn the former military base into one of the nation's largest urban parks before financial problems slowed plans.
The Associated Press contributed to this report.