I don't think that's really what we are discussing here. Right now we have everyone except fringe dropouts going to middle school. That is, there are 2 options

I don't think that's really what we are discussing here. Right now we have everyone except fringe dropouts going to middle school. That is, there are 2 options: middle school education or no education. What's more interesting is if we could take people that would be successful in middle school and see if they could achieve increased success by participating in a different model.