"Circles I move in" = "what goes around, comes around."

I'm coming in a bit late on this, but since you're getting strong opinions for both rat and don't rat, I'd go for the easiest thing too. If she's able to DO the job and the lack of credentials doesn't hurt anyone, ain't no big deal. If she's not able to do the job, then she'll probably lose it. (Unless she works for the government, in which case, they'll promote her.)