The factors that contribute to resistance to change in an organization are numerous and varied. Some of the key factors include lack of communication, unclear goals, inadequate training, and poor leadership. It is essential for leaders to understand these factors and develop strategies to mitigate them. In the context of BT's takeover of EE, Olaf Swantee should employ a participative style of leadership that involves employees in the decision-making process. This approach can help to create a sense of satisfaction among employees, which is crucial for successful change management.