It depends on what that person has done in the real world. It isn’t just political experience but long term executive experience showing that the person has a grasp on how to make good decisions and has sound judgment. I don’t think serving a half term where a good chunk of that time was spent on the campaign trail is sufficient experience for what will have to be done after the 0bama reign of terror.
People took a chance on inexperience with 0bama, they aren’t going to do that twice if there is a decent choice. There is already more people with governing experience in the primaries than was on the general ticket 2008.