Better watch those games again, son.
Hayward shot 62% from the field (13-21). And he was very aggressive going after rebounds and loose balls. With Sundiata "Ballhog" Gaines, it's a wonder anyone else got any touches. Hayward had ONE bad game. IMO, Gordon was one of the few looking to run any semblance of the Jazz system, coming out to take the ball, passing it quickly, then running over to his spot on the floor.
If by lack of aggression you mean that Gordon didn't chuck up a bunch of shots, then he's guilty as charged. He pretty much only took open shots. But isn't that EXACTLY what we want our players to do? There's a reason Utah is always near the top of the league in terms of FG%. The Jazz try to get the ball inside FIRST, and the wings either cut to the hoop or take high-percentage shots coming off screens.
Granted, he doesn't appear to have great range from the three. But he was deadly coming off the curl. And he has some moves to/around the hoop. He needs to work on his driving skills - at times he was a little out of control. But is any rookie a finished product? Just watch some footage of Turner or Favors. They were terrible.
BTW, our poster boy of last season, Wesley Matthews, shot 35% in summer league. He was a guy who was borderline to be INVITED to training camp.