United has outsourced/offshored a lot of positions, this is true. However, the company does offer a wide variety of other positions. I would suggest that if you are in a position that is easy to outsource, take advantage of the company policy that allows you to move around. Retrain, and make yourself valuable.
The best advice for right now, from @Oefu06T-zcl. There are still options within UnitedHealth, just make sure to snatch them up in time.