(2) The training time is long and the content is wide. Taking managers as an example, it is impossible to train a potential employee into an excellent manager overnight, but it takes some time. Because there are many requirements for managers' quality, including knowledge, experience, ability, morality and personality, correspondingly, the training content is also varied.
(3) Combination of various training methods. This is determined by the diversity of training content. Classroom teaching can be used for knowledge training, while practical exercises and simulation exercises are used for ability and personality training.