Dealing with aging workforce, changing career choice and preforming new roles, changing relationship from a co-worker to a boss and the ability to make different choices. These career changes can be a challenge to managers on one side and advantage on another side. Focusing on changing from a co-worker to a boss is an overlooked challenge and yet it is a pain to many managers. Most of the managers are promoted from an employee to a manager. In this case, managers find it hard to relate with their former co-workers. This challenge can be of great importance in 21* century and this is only by dealing with the problem positively since these kinds of managers are always effective due to their awareness of the organization here 108)