++++ 1.Officials - Organization of departments - Assignment of staff - Discretionary power of the administration - Limits - Interest of the service - Compliance with the principle that the post to which an official is assigned should correspond to his grade - Obligation to state the grounds and to give the official concerned a hearing beforehand - None ( Staff Regulations of Officials, Art . 7(1 ) ) 2.Officials - Organization of departments - Assignment of staff - Reassignment in the interest of the service - Conditions ( Staff Regulations of Officials, Art . 7(1 ) ) 3.Officials - Decision adversely affecting an official - Concept - Decision involving the transfer of an official against his will - Obligation to state the grounds - Scope ( Staff Regulations of Officials, Art . 25, second paragraph )