Section 777 - Disposition hearing; time; obligation of agency representativeA. Prior to entering a judgment of disposition, the court shall conduct a disposition hearing.B. This hearing may be conducted immediately after the adjudication and shall be conducted within thirty days after the adjudication. Such period may be extended for good cause.C. At the hearing, the court shall inform any employee of a public institution or agency designated by its director to represent the agency in this matter that he will be deemed personally responsible for his agency's cooperation in the providing of services to the family unless in writing, the director of the institution or agency subsequently informs the court that some other individual within its administration is to be substituted for him.