Unfortunately, no, it can’t be fixed quickly. It’s not as simple as “you either have it or you don’t” but I think it’s more psychological if anything. Some QB’s like Angeli or McCord can handle all the pressures and nuances that the QB position brings.
You’d think wow, Rickie was sitting behind Nussmier & Daniel’s? He’s gotta be very experienced and should look composed but unfortunately it’s never that simple. He has all the physical tools, but QB is like 70 percent mental. All you gotta have is a decent arm, if you have elite quarterback IQ, you’ll probably do great.