My only retort is which top flight SEC transfer at the QB position has ever flourished in the PAC12? Barnett, Bateman, and Mustaine all rode the bench. Hell, Cornwell lasted 4 weeks at Nevada, yes MWC bottom dweller Nevada, this year before it became apparent to him that a 2 star nobody had beaten him out for the job. Tom Savage had a cup of coffee at ASU before landing back at Pitt after leaving Rutgers. Quarterback in the PAC 12 is a whole different animal for what ever reason.
Recently thhe only true outlier that I can think of as an high profile SEC transfer at QB has been Will Grier who left Florida for WVU and what QB playing in the big 12 hasn’t looked like a total stud against those defenses (I know Chuganov sucked against us but they hung 31 on Oklahoma with him under center).
DTR will be starting for UCLA game one.