Should Salespeople Be Included in Annual Employee Performance Reviews?

The Situation
Most companies conduct formal, annual, employee performance reviews. Some include salespeople in the process while others do not.
Those who include salespeople in the process argue that all employees should receive this formal feedback.
The counter arguments are that employee annual reviews are generic and do not address sales related topics. Plus, these executives say that salespeople know how they are performing based on quota attainment.
Your Challenge
Should salespeople be included in annual employee reviews?
If they should be included, how do you make the process relevant for salespeople?
If not, what performance feedback program should be in place for salespeople?