Completely random is a good enough answer.....it at least lets me know that there is no common or "normal" pattern from which to work, hence live further away at your own risk. I suppose you can make it work from anywhere depending on your circumstances. As for whether I'd be in the running for a 737 f/o job off the street - I don't know. I hope so but make no assumptions. Either way, I'd just like to be armed with as much information as I can to make an informed decision if I'm fortunate enough to have the opportunity.