In the errata thread the following was posted:
Q: Can a character ever select/purchase a second base profession?
A: No. A character only has one base profession. Characters may purchase as many Elite Professions as they qualify for, as per the rules.
How does a soldier like Kira ever become a Starship Officer, since she can't take Starship Duty (even with Innovative), can't take another base class to get it, and can't qualify for the Starship elite classes without it?
Or did she never become a sharship officer, just paying double for all her starship-related skills the whole time?