You can do anything you want, what you went to school for means very little in the "real world", its knowing the right people and using whatever experience you have to show how you are a capable individual, i.e. Pilots are able to work under extreme stress, team players, work well with strangers etc..........
Sales is where the money is, and that is ALL PERSONALITY, if people like you, they will buy what ever crap your selling.........
I am going to do some substitute teaching on the side, I just hope I am nto too tempted by the HS girls