I like him but there's a great chance he'll just be a backup. He processes slow post-snap by NFL standards and never looks off safeties and drop-back linebackers. Everything else looks there. In truth, if I had to compare him to anyone, I would say a near spitting image Jake Browning (who I think could perhaps be a starter in this league if he wasn't backing up Burrow).
The only way to cure those two things are sideline studying and forcing a habit to look off in practices even if you shouldn't. Think running 100 plays a day and simply forcing yourself to look off every single time. JD5 has a super interesting training scenario for game speed processing post snap. He uses a Quest Meta 3 with game film and speeds up the plays to 1.5x speed. What's really interesting is he started doing that back at LSU which is when he took a massive step forward in his game. How he uses VR may have played a significant role in it. SideNote : He doesn't just use VR. But on any screen he speeds up the play to 1.5x speed.
I just find the VR concept incredible. QB's could have a significant study advantage if they can find a way to get an indestructible micro camera on the front of their helmets for reviewing game/practice film.
Anyway, back to point. If he sat a year studying hard and adjusting to the NFL speed and as such, his processing speed while learning to look off zone coverage, he could be really good and a great development QB over Rattler.