Change is Good - Yes? Maybe?

Some of us don't like change at all. Others are ready to change at the drop of a hat! Sometimes God tells us to stay the course, but at other times He says we need to change, even that we must change. But change can be very difficult. What are the obstacles which we must remove in order to bring about effective change in the Christian walk? What is the prime key which sparks good and effective change to move us toward Christ and His kingdom? When we understand these things, we'll be in a better position for God to change us.