This is a management issue in my opinion that we all probably have to face at certain times. People like to be in control of their environments and after someone has spent time and expended the efforts to develop and put something into practice it is difficult for them to just let it go. After all, it is their sweat and blood that may seemingly be dismissed; they may take offense to that dismissal. One way to correct this that has worked for me is to identify what is in need of change or development, coordinate all of the stake holders to meet on the subject, get ownership by all participants and through regular effective communication develop what is necessary. It has been my past experiences that only through team efforts where the team is either successful or unsuccessful will you get individual ownership that will work towards a goal that benefits all.