Then you would be a terrible recruiter.
HS senior who's the stud athlete in his school. Everybody loves on him and he truely believes he can play any position at the next level - why wouldn't he as he's been successful at every athletic challenge faced? Even the best college recruiters are successful on QB's about 25% of the time. For all UT knows, during a red shirt season he may well develop into a quality QB. If not, he will probably figure it out on his own comparing himself to the other QB's on the practice field. At that point he will either transfer to a lower level program or will switch over to safety. All UT risked was a red shirt season. If he leaves, he will be back filled quickly. If he stays, then they got a stud DB or QB out of the deal. The other 75% of their non-starter QB recruits can't be repurposed to a different position. UT honestly gives him a fair shot to develop at his preferred position - nothing dirty about that.
Bear Bryant used to sign 5 to 10 QB's every year as his thought was a HS QB was typically the best athlete at the school. He was pretty successful using them as RB's, WR's, DB's, and LB's.