They can also decide to only interview internal applicants. I work for the Commonwealth and recently changed jobs. When they posted my old position, they had less then 10 internal applicants and over 70 external applicants with a score of 100. They decided to only interview the internal applicants. If you really want a job with the State, you may have to take any job you qualify for to get your foot in the door and then apply for higher level positions. A lot of people start off as Clerical Assistants.