I have submitted both my common app and the supplement. However, after doing research on many schools, I want to change the school I have applied to. Engineering->Weinberg. I mentioned the engineering school's name once in the supplement. So my question is, would it be possible to call them and ask them to change the school and a sentence on the supplement? I called them and it went to answering machine. Do you think I will be able to call through before deadline?