My salespeople should get maximum annual increments because western region sales have given a maximum sales growth of 25 percent against the total company's sales growth of 15 percent Besides, western region has contributed 35 percent of the total company sales", said Suresh Deshpande, regional sales manager (western region) to the general manager (sales) RV Apte.

"Well, I do appreciate that your salesperson's performance has been exceptional and they should be suitably rewarded. But that does not mean salespeople from other regions are not performing well. The overall market potential and growth of western region is much higher as compared to other regions. For instance, eastern region's market potential index is 16 percent of all India, and its growth is limited. That affects the sales performance of eastern region. The salespeople in eastern do work hard, but the results are not as good as western region", responded Apte.

What improvements would you suggest to the existing system of performance evaluation of the salespeople of this company?

Briefly explain the suitability of different methods of performance evaluation.