The global market is very competitive due to fast changes in complex business environments and to survive or expand the business, organizations must embrace organizational change. However, adapting to change is not always easy, where organizations may experience obstacles and resistance along the way. Organizations may also experience that it is very hard to implement lean successfully, due to lack of know-how but especially resistance. The traditional way is to blame the blue-collars for the disturbing circumstances but in modern times the wind has changed its course where the managers themselves can be a contributor for implementation failures. Therefore, the aim of the research is to investigate what advantages that can be obtained by implementing a certain change initiative. Furthermore, to determine where resistance occurs and how to eliminate or reduce them. The change initiative in this research is implemented by conducting a case study in a Small Medium Enterprise (SMEs), where the main goal is to reduce the changeover time of a machine, by finding improvement suggestions using the Single Minute Exchange of Die (SMED) methodology. The results generated several improvement opportunities and gave an indication that there is a huge potential for improvements and elimination of waste during a typical changeover. The positive outcomes of implementing these improvement opportunities could theoretically reduce the changeover time, which directly reduces the overall cost but higher responsiveness, flexibility and efficiency can also be obtained. However, the evidence tells a story where the organization could experience obstacles during the implementation of the improvement suggestions, due to several factors. Surprisingly, the evidence points out that one root problem for resistance is difficulties of describing the underlying reason of the change initiative to the blue-collars. Moreover, there is in fact resistance and lack of awareness of the SMED methodology among the blue-collars and the managers, where fear of the unknown is another root problem for resistance.