Air Force DEP services?

If you haven't been booked into a job then talk to your recruiter and they should be able to change your job list. Once you're slotted into a job with a ship date then it's much harder. Pretty much the only way is to hope for one of the other jobs you want to come up through someone else cancelling and needing a quick fill for that slot. And it's AFSC, not MOS ;)