The benefits of Marketing Plan, including: to achieve better coordination of activities. To identify expected developments. To improve the organization's readiness to change. To minimize the irrational response to unexpected responses. To reduce conflicts about how organizations should move. To improve communication. To urge management to think systematically. To expand the adjustment of existing resources to elicit preferred opportunities.
Ideally, after writing marketing plans for a few years, you can sit back and review a series of them, year after year, and check the progress of your company. Of course, sometimes this is hard to make time for (;there is that annoying real world to deal with);, but it can provide an unparalleled objective view of what you've been doing with your business life over a number of years.