I really do not think EJ has looked any worse or better than any of the other QBs overall (based on impartial tweets, TBD reports, and the first preseason game). He has the highest ceiling. That said, I truly believe his leadership skills, or lack thereof, are holding him back. Can he take command of the huddle, get in someone's face when needed, and truly motivate and control his teammates on and off the field.
I'm really not sure that he can, at least not at this point. If he had this ability, I think he would be at the top of the depth chart.