I found the following series of articles on the 9 marks blog very helpful. If you are not the Pastor or one of teh church leaders, there is not much you can do to actually implement change in your church. This is the bottom line of these blog posts. The author explains why and then shows what a member can do and how he can live with those things he can’t change.
Why You Can’t Change Your Church (Part 1 of 4)
Why You Can’t Change Your Church (Part 2 of 4)