[Poshua]

OP, I work for a large bank, on the corporate side. I do know a few people who have excelled on the retail side (in most banks, Mortgage Collections would be considered part of the retail bank, even if you don't actually sit in a branch), moved up through the ranks and then over to better opportunities on the corporate side.

I don't know your vital stats, and I don't know much about the bank you're looking at, but assuming you (1) are talented and (2) have a bachelor's degree, my guess is that you should be able to use this position as a jumping-off point for advancement. Because banks need a fair number of high skill workers, at least the one I work for is quite proactive about identifying, training and advancing employees who have potential.

PM me if you have any more specific questions, and good luck. Also, NH on the screenname ("As in, 'Go buy us some coffee'").