Help with a slight dilemma

[jly]

So... I have been admitted into Pitt for Security Policy and AU SIS for International Politics. My original idea was to go ahead and do Int Politics and SIS with a concentration in Int Security which is what I was admitted for. What I am quickly realizing though is that I should be in the US Foreign Policy track at SIS. I have also applied to GWU for Security Policy Studies which is the program I would attend if admitted. Assuming AU and Pitt are my only options, do you guys think they would let me switch to the other program, even if it were after a semester?

Thanks!