Generally speaking, it must be the position of the department head, but counselors have a more specific impact on the distribution of many practical interests, such as student cadres, class committees, joining the party, grants and so on. Give an easy-to-understand example. Do you think it's better to be the president or the director of the village Committee in your village? In fact, they are very powerful. But the president can't take care of too specific things, such as requisitioning your family's private land today. It's definitely the village director who has the final say. Not everyone can get in touch with the dean, so as an ordinary person, you should get in touch with the guide first. As for the dean, let's talk about it when we have a chance.