The content discusses the implementation of Enterprise Systems (ES) at Company Y, highlighting the importance of change management to ensure successful adoption. Resistance to change is common in organizations, driven by factors such as lack of skills, vulnerability of systems, and high costs. To address resistance, employees should be communicated with, impacted with the right skills, and considered in decision-making processes. The project leader and Business Analysts (BAs) can gain early warning of resistance by researching and consulting on the viability of the system, addressing it through change management and training. The case study mentions local teams, customers, and managers as parties that posed resistance to change.