When accomplishing anything of significance, you will offend people and make enemies. This especially applies to dysfunctional organizations with entrenched interests. You are not a missionary seeking converts. Make sure you understand why things are the way they are before you start changing them. Then move swiftly and decisively. Concentrations of power and authority in particular will vigorously resist attempts at change. Organizations with evenly distributed power and authority are the most open to change. Before starting a program of change, distribute additional authority and responsibility to those most likely to support change. Never assume that you will convert everyone to your agenda, or meet everyone's expectations.