Boston College Economics (MCAS) or USC Economics (Dornsife)

These are my two options for undergraduate next year. I'm transferring, so I'll be starting as a Sophomore for both. I know both of these schools have a business school, but I want to know which will give me a better shot at working in IB. Should I put in the effort to transfer into the business school once I get there, or just focus on interview practice/networking/clubs?

Also, if I go to USC, is it worth it to rush for connections? Or is it better to just ignore all that noise and focus on networking through clubs and alumni? I also don't care where I end up working, whether it's LA, NYC, BOS, SF, or CHI. They're the same price (full ride since im poor). Let me know what you guys think. Right now, I'm leaning towards USC since it's a target on the West Coast, I've hear,d, but I'm not in Marshall. I've also heard MCAS vs CSOM at BC doesn't really matter, but I'm not too sure about that or if it's better than USC at that point.