Although a series of resolutions of the General Assembly authorized the Secretary-General (provided a number of conditions were fulfilled) to reappoint under the I00 series of the Staff Rules mission staff whose service under 300 series contracts had reached the four-year limit, there had never been any legal obligation to do so. Even if the principles of Handelsman were applied to this case, no express promise for converting the appointments could be found. Furthemore the Applicants failed to exhaust internal remedies in a timely manner, since they did not initiate formal proceedings against...