Training development and performance management & appraisals. We will review the vast importance of impactful training and development of an organization's existing employee network. As organizations face more and more competition and change, training becomes more critical in every organization. Employees must be trained continually in order to maintain and update their capabilities in order for an organization to remain competitive.   In addition, performance management and appraisals are important employee development tools which, when used correctly, result in improved employee performance.