Daniel Jones was coached by the best QB coach in the history of the sport.
He will be very mechanically sound and he'll have a good understanding of an offense, but you can take away his strengths by forcing him to read zone coverages from inside the pocket.
There wasn't any non-preseason tape on him for defensive coordinators to look at.
They'll start making him uncomfortable soon.
FTR, I think he can be a very good game manager type in this league. I thought it was a very smart pick by the Giants. But he is certainly limited as a thrower and opponents will attack him sooner than later.