The chair or designee shall designate a presiding officer for an adjudicative proceeding. The presiding officer shall be an administrative law judge, a member in good standing of the Washington State Bar Association, a panel of individuals, the chair or designee, or any combination of the above. Where more than one individual is designated to be the presiding officer, the chair or designee shall designate one person to make decisions concerning discovery, closure, means of recording adjudicative proceedings, and similar matters.