The Under-Secretary-General for Internal Oversight Services shall be appointed by the Secretary-General, following consultations with Member States, and approved by the General Assembly. For this purpose, the Secretary-General shall appoint the Under-Secretary-General for Internal Oversight Services with due regard for geographic rotation and in so doing shall be guided by the provisions of paragraph 3 (e) of General Assembly resolution 46/232 of 2 March 1992 whereby the Assembly decided, in particular, that, as a general rule, no national of a Member State should succeed a national of that State in a senior post and that there should be no monopoly on senior posts by nationals of any State or group of States;