Vanguard News Usurpation of offices: Yabatech workers threaten strike On By Adesina Wahab The Senior Staff Association of Nigerian Polytechnics, SSANIP, Yaba College of Technology, Yabatech, chapter, has given the Rector, Engineer Obafemi Omokungbe, two weeks to redress the situation whereby teaching staff have taken over some positions that are meant for non-teaching staff as prescribed by law. The workers, who held a congress on campus on Thursday, listed the positions for which their members have been denied to include the Director, CITM, the Director, Works and Services, the Director, Physical Planning Unit, the Director, Consult and the Head of Fire Services.