Having written goals is an established method for attaining what is important. Depending on your perspective, reaching the goal may be less important than having one, since having one not only provides a target but makes a plan for reaching the goal necessary. A goal without a plan is an empty promise to yourself.
Many eschew having goals out of fear of not reaching them. That might be considered as a dysfunctional perspective that you can rise above and use good goal setting strategies to help you achieve improved results.
This short video segment from my NEW Selling with TRUST Platinum Edition DVD might help you decide which goals are appropriate for you and your company. Disc 1 in the two disc set is an updated sales call with over 100 minutes of video examples and Disc 2 includes 17 chapters on various useful subjects including Setting Sales Goals.