Evaluating and Reviewing the Plan: Decide a time_frame for your marketing plan and determine the metrics on which you will measure its success. Measure the results it produces and compare them with the expected success. This will help to know whether any corrections or modifications are required to make the plan more successful.
Risk _ in our marketing plan we shouldn't only concern about making money or positive points, we also should address the risk we are taking. for example it is common for a marketing plan to capture things like, "require additional staff to handle sales call", "additional investment from the management budget will increase chances of increasing 10% sales target" and many more. Imagine if you can factor your risk earlier and think through it, wouldn't it be better for you?