I agree with your previous statement about Harris deserving more PT. I feel he may not have the command of the O that AJ has but he is a better passer. That is more needed right now. Last year Mett was on fire when healthy. Remember how inconsistent he was two years ago? Mett looked overrated. It takes some QB's longer to finally get it. I'm not at all happy with where AJ is right now as a QB. Still in all you can't write him off and say he will never be a Dak.
Just saying that Dak is another kind of QB. Jennings may put on 20 lbs and be a beast to bring down but he doesn't look like he has that frame and elusiveness.