Generally speaking, a company will have many departments, and each department has its own responsible part.
Parents can assign departments according to employees' specialties after general training, and then continue detailed training.
If this is also trained, then give them some knowledge of other departments.
Nowadays, everyone likes to change jobs and study. When people are short of hands, they can transfer internal staff at will.
Even after these trainings, the corporate culture will be introduced again to give new employees a sense of belonging.
I think this is what contemporary enterprises need to pay attention to.