Fields has always made throws only he and very few players could make. It's not just hitting an open guy..its delivering a ball in a tight window.
So for me, It's just a matter of time until he takes off. He needs time to gain experience and become more comfortable. That and the Bears need to surround him with the right pieces so he can make those throws more often.
But if he was on a team with loaded weapons, there is no doubt to me that he would tear it up. Just need to find the right supporting cast and Build chemistry with that cast