I feel the same way too - not worry about the QB position.
To me, they kind of all look the same, meaning height and weight, but also the way they play (based on the videos). Maybe that's what TC is looking for, 4 or 5 guys that can plug and play at any time, as the QB position is one sack away, for the next guy up. Maybe that's what UH has been missing for long time, and QBs had to play hurt, because there were no one else that could step in.
Or we can ask the question, perhaps TC have not found his starting QB yet. So the audition is open. And the fact TC is bring in transfers, means he need someone now. The young guys are not ready. TC does not have the luxury to "develop" and need to win now. The honeymoon period is only 1.75 years.