I believe that is correct. Arbitrators can negotiate various terms of compensation and rules, but they cannot essentially change the basic business model of an operation (i.e., by outsourcing your job).

On another note, in light of the "industry leading TA" for our flight attendants, and the new bonus for DAL employees, our negotiators really need to focus in on those developments. We should be getting DAL pay and at least some form of profit sharing without any scope changes. No other airline is talking about scope changes, so why should we entertain such things?