The editor of market buzz, a business magazine, wants to make several major changes in the magazine's content and format. therefore, he asks a few members of the editorial board to use diagnostic research to predict the results if the changes are implemented. given this information, the editorial board of market buzz will: collect information about the magazine's past performance in the market. explain how the magazine's competitors improve their circulation. gather and present ways to change the magazine's content and format. determine the impact of the changes on the magazine's circulation.