The template itself provides guidance and milestones so that you can measure your progress. If you are not achieving the results you want, you can revisit the template to check that you have not overlooked something or misinterpreted what is required.
You can also do that if you are rushing to get a plan created. This will make your job a lot lighter because with a template, you would just be filling out a form. No need to think that hard and you can also make sure that its content is complete. Since the person who made the plan previously have revised it several times, it is sure to be accurate.