Please see post #21.
The pilots that are already trained pilots are sent from various units to Luke to qualify on the F-16 and most return to their own wing at another base. I think those are the colors for their own unit with their name. Perhaps it is Captain J. T. “Rocky” Stewart, with a wing designation patch. I will look at a few this week and give you the specifics.
Besides training the pilots they will also train maintenance crews for the new F-35 so there are a lot of in and out people going through Luke for short assignments. Elgin has handled a lot but beginning in a few months, Luke will begin the swing up as the ATC goes on line. One SOF is already operational and a second will be in a month or so.