"He's one of those guys ... he's a gifted route-runner, and he is getting better," Caldwell said. "He's young, and he's developing. [Wide receivers coach] Jim Hostler is working with him and certainly getting him refined in all aspects of the game, [but] he understands how to sink his hips. He can do a great job of changing direction. He has speed, can catch the ball and he's tough. I think that's a pretty good blend." He's a young guy, so we will see. If he keeps improving the way he's going, I think he will be a fine player."