In this paper, the factors of resistance to organizational change management are studied in viewrnof the Lewin’s three phase model of change process. The coefficients of fifteen sources ofrnresistance were the critical cancers and were weighed against which sources of resistancernpresents higher disparity of impact in the phases of the change process. One hundred fiftyrnquestionnaires were distributed randomly in ERCA, Addis Ababa. A unidirectional logitrnregression of odds ratio and marginal function analysis was used to get a finding that age andrngender are not predictors to resistance, while education and experience are negatively andrnpositively predictors respectively. It is also found that a variable factor can have variedrnsignificance level in the unfreezing, moving and refreezing phases of change a process. In thisrnregard vulnerability driven factor was the highest significant factor in the first two phases whilernmanagerial incapability driven factor in the last phase of change management process.