UNDT/2024/113, Sellami
A staff member’s duty to abide by managerial instruction lies at the heart of employment relationships and the Tribunals are expected to accord a measure of deference to managerial authority, including in setting performance standards (see, Applicant 2020-UNAT-1030, para. 34).
The Applicant has not demonstrated any procedural or substantive breach of his rights. In the absence of any evidence that the performance standards applied by UNICEF are manifestly unfair and irrational, the Tribunal cannot substitute its decision for that of the decision-maker to overturn the contested decision.
Accordin...