++++ Officials ° Organization of departments ° Determination of the level at which a post is to be filled ° Heads of units ° Discretion of the administration ° Publication of an A 3/A 4/A /5 vacancy notice and setting of the level at which the post was to be filled after the candidatures had been received ° Unlawful (Staff Regulations, Arts 29(1)(a) and 45(1))