They stopped filtering kids like that into the 3 schools in the late 90's. But before that, BCA had been the place for the kids with no social skills, RMA had been kids with more serious (ie. drug and legal) problems, and I suppose they just tossed the rest in with NWA. Eventually though, BCA and RMA got pretty much the same kids. Unofficially they had been doing it like that for awhile, but then the top dogs made it official that they were throwing away that whole filtering system. NWA just turned into a 17+ year old, accelerated program.
But when I was there, which was well before the NWA/RMA campus switch, NWA had a basketball team and a soccer team, and both BCA and RMA, the bigger schools, had soccer, basketball and baseball. From 1999-2002, BCA swept the floor with NWA and RMA in basketball and soccer. RMA got good towards the end actually and won once in soccer. NWA was really terrible, I played soccer and we beat them 5-1 the day after RMA beat them 8-1.