Hurts is bigger. He's a more willing runner, I wouldn't necessarily say more natural. Fields is a step faster, maybe more agile too. Seems like teams are playing for the moving pocket. Part of the reason the Bears are running the ball well is because when they show run action, the weakside DE is basically playing for the reverse pivot, taking a man out of the run play. They know the OL isn't good enough to keep the other 3 out of the pocket consistently if he does drop straight back. I feel like good teams with mobile QBs, don't do the naked bootleg stuff and leave their QB 1-on-1 with a DE. They actually commit an extra blocker to him so the QB has time and a lane to throw, even if on the move. Like I want to see Fields outside the pocket, but actually move the linemen, have a TE come across the formation to pick up that guy keeping contain. Hurts is bigger in what way? hes 6-1 223, Fields is 6-3 227 according to NFL.com https://www.nfl.com/players/jalen-hurts/ https://www.espn.com/nfl/player/_/id/4362887/justin-fields