In your case, there are two situations. First, economy and management are cut off from the retest line. If your English doesn't reach the retest line of economics in Renmin University Business School (not necessarily 60, which changes every year), then you don't have to take the retest, but if your score reaches the national line, then you can choose to transfer to other schools' related majors. As for whether to transfer to business school management, it depends on whether the business school management is full. For Renmin University, there is basically no possibility of transferring, and the hope is slim.
Second, economy and management are not separated from each other, in other words, they are separated according to the same kind. You can consult the school admissions office to see if the second interview can be transferred to a major. There is still such a situation.
As for transfers, you can always pay attention to official website Postgraduate Entrance Examination and the reported school enrollment network.
There is a single line in theory, but it is actually zero. It is impossible for the National People's Congress to adjust.