One way to improve SFE is through training courses specifically designed to enhance the skills and knowledge of the sales force. These courses can cover a range of topics, from product knowledge to communication skills to sales techniques. By investing in SFE training, pharmaceutical companies can improve the performance of their sales force, which can lead to increased revenue and market share. However, it is important to note that SFE training is not a one-time event. It should be an ongoing process that is constantly evaluated and updated to meet the changing needs of the market and the sales force.