I talked about this a while back in regards to Fromm, but what you have to pay attention to is the drastic difference in the way he plays against zone coverage vs. man coverage, and what it illustrates. It points to the archaic design of the offense he's stuck in.
Fromm excels against zone coverage where he's required to find the weak spots and utilize his ability to rapidly and seamlessly get through his progressions. Against teams that play a lot of man coverage, his effectiveness plummets. However, it's not really because of Fromm - it's because of the lack of man beater concepts they tend to run against man coverage, and the lack of difference makers at the receiver positions.
His effectiveness suddenly jumps back up again against man coverage when the OC wakes up and utilizes some man beater concepts - stacks, switch releases, rubs, etc. Rather than just running into the coverage manned up across the formation. You give your quarterback somewhere to throw the football when you employ these concepts and allow the receivers to leverage DB's and run away from it. UGA doesn't feature any RPO's or anything designed to target a specific second level defender and make him commit to one or the other. Fromm is forced to beat defenses the old fashioned way.