This one definitely supports career development.  The whole idea is that you will be promoted up the chain and they will replace the lower levels.  Doesn't matter where you come in -- Admin, File room, Mail room, or like me, VSR -- promotion is expected.  For a VSR, you come on at one level, advance to the next level one year later, the next level the next year, and at the end of year 3 you test for the next promotion.  As a VSR, they hire you on as a GS-07/09/10 target 11, which means you go GS-07, GS-09, GS-10 and test for the 11.  Once a GS-11, then you start looking for a job change for promotion.  Mine came in as a move into management, but others make a move from VSR to RVSR (another team in the claims process - and a promotion).  When you come on board as a File or Mail clerk, they start working with you to get you qualified for the VSR role. Entry level positions are Mail, File and VSR, and we seem to always be promoting from one or the other.