What does "those that can use some enhancement" mean

Question

Rather than attempting to address knowledge and  skills, this approach focuses on the emotional intelligence needed for success in key emotional skill areas. The assessment helps you identify those skills you need to develop, those that need strengthening, and  those that can use some enhancement. 

Answer 1

و مهارت‌هایی که می‌توان آنها را بهبود بخشید

(واژه those به skills اشاره دارد)