I believe Randolph is just for UPT Instructor Pilot training. Vance, Laughlin, Columbus, and Sheppard are student training bases. 

Randolph will have a few UPT class anomalies like that’s where they did alot of UPT Pilot Training Next classes, but for the most part WAS is correct they do mainly PIT (teaching FAIPS and IP’s how to be an instructor pilot for UPT before heading back to Laughlin, Vance, Columbus, or ENJJPT).