When you come into the league at QB has to learn the different speed of the game. He has process a LOT more at the LOS and post snap than he EVER did in college. That takes time and reps.....PRACTICE reps. You do NOT learn those skills in the 2 months of work prior to the season.
In an ideal world your rookie QB will make mistakes, cost you games, but will learn from those mistakes and gradually those errors fade away, his processing time decreases (over SEVERAL years), and you have a QB you can win with. BUT the risk is, and we have seen it many times, you might find that your athletically gifted young QB isn't mentally or physically tough enough to produce for the long haul (case in point Tony Eason, who had some VERY good statistical seasons, but just couldn't take the beating QB's took back then.) Or more recently the Mac Jones saga.
Perhaps the QB who is left to us will win the Job in training camp or get the starting job sometime in October or November, OR pretty much sit the first 17 weeks. I don't know. IMHO it is the most difficult job in sports. The LONG term success of your rookie can't be judged on their first year. (as we have so recently seen) McDaniels spoon fed Mac to a very successful rookie year. After that he was pretty much thrown to the wolves and he became a shadow of the kid we saw in 21. I do NOT want to see a repeat of that with DM or JD.
