No he wouldn't. This is preposterous. JB was NOT good either before the injury or after the injury. He was being dragged by great running game and defense the first half of the season. To be fair to him he was being extremely safe and wasn't losing us games (also was very efficient in the red zone) but this was not a sustainable recipe for success and we saw that in the second half.
Is he going to be better than most rookies in their 1st seasons? Sure. But this is NOT the choice we should be making. This is not a choice you make for 1 year, this is a choice you make for the next 10-15 years. I'd take at least 6 QBs in this draft ahead if Brissett.
Ballard is on the record saying that because if the nature of our scheme and the constant "go-go-go" demands on the linemen he wants a rotation where no one is playing anything close to 100% of the snaps. What we've seen thus far is that this means linemen playing about 65-75% of the snaps at the max and rotating a ton to keep them fresh and ready to go.