My boss has been asking me to monitor the business performance for the whole company. However, we have a business operating manager who is supposed to do this task. I have explained this to my boss several times, but she just ignored all my suggestions on how to solve this problem. Would anyone give me some suggestions on how to convince her stop requesting me to duplicate the workload?
Background: I am working as an assistant marketing manager of a company. We are only a small team, and we provide supportive services such as design and production, communication, website, facebook, youtube, reporting, advertisement and PR, to the whole company. We don't have the skill sets to collect data and do the analysis work. And, of course, we are not the proper role to do business performance analysis, given that there are other resources on hand who officially have this as part of their role.
I suggested let our business analyst to prepare a monthly report to her. However, she kept asking us to do by ourselves. What my boss requested not only overloading the whole team, but also make us very frustrated as we explained so many times.