Hacker15e
Who am I? Where are my pants?
It wouldn't surprise me. The list of things the Air Force wants T-X to do is just far and above that jet. My money is on TA-50. Even though the general consensus on that jet is its a lot of extra stuff and extra dollars you don't need in a trainer... Like that ever stopped us in a procurement program before.
The issue is, the T-38 doesn't just do basic undergraduate training; it also has to be capable of fighter lead-in training for guys who will go fly Raptor and Lightning. There is a giant technology gap between what the AT-38C can do and what a young pup starting in the Raptor or Lightning needs (hence the use of the F-16 as a lead-in for guys going to the Raptor.
So, the T-50 has lots of extra bells and whistles that aren't needed for basic UPT, but are essential to make it a useful IFF platform.