Sales Manager

This is what I have been thinking of. Am I suppose to work as a Sales Manager or MIS Manager? It seems like I am doing both. In fact, I like both of them. LoL! But, Most of my job is related with the operation matters. I can say that, jobs in sales  isn’t easy, because its required your operation knowledge as well as your IT knowledge. That’s why, IT knowedge is very important now. Should I ask for a new position to MIS/Sales Manager? LoL!!!