For perspective, complaining about a talent like Joe is kind of a "luxury problem" to have for us these days. I say that because if you could replace him with any other QB in the "Dark times of UT football", who else would you want from these choices? I used all the starting QB's I can think of from the last 10 years.
Worley
Peterman (The Tennessee version)
Dormady
Keller Chryst
JG
Will McBride
JT Shrout
Maurer
Harrison Bailey
Personally, I'm taking Milton over this list 10/10 times.
You could go back a little further and add Bray to the discussion and that might kick up some opinions, but I'm not sure he's a great fit for Heup's system. I'd probably still rather have Joe.