What has remained a bit under the radar since the Packers transitioned from using Cedric Benson as their primary runner is the adjustment Rodgers has had to make having four different guys in the backfield.
There are times he has been up at the line of scrimmage about to audible when it occurred to him that changing the call would not be ideal because of who is back there.
"When you've got some guys who are in different places mentally and athletically, you try to play to their strength," Rodgers said.
For instance, he doesn't want to call on the back to pick up a blitzing linebacker if the 5-foot-7, 203-pound Harris is in the game, just as he wouldn't want to check to an outside zone play better-suited for Green than for Grant. He may be comfortable having Grant chip on a defensive end, but if he knows he's going to have to dump the ball over the middle, Kuhn would be a better choice.
If he switches to a play where he's going to swing the ball out to his back, it's better to have the speedy Green or Harris carry it out than Kuhn or Grant.
"DuJuan is not quite there on all the protection adjustments and all the routes," Rodgers said. "You try to make sure things are clean for him. He's been studying his butt off. I know he's going to improve in that area. But it's different if he's back there compared to if Alex is back there, or even Ryan.
"Ryan and his downhill running style has always been productive in the winter months. So trying to give him some things he's comfortable with. When John is back there, John is excellent in the protection schemes; he's not going to run away from a bunch of guys.
"Making sure that you have the right check and the right check-down depending on who's back there is important."
In the 55-7 victory over the Tennessee Titans on Sunday, Rodgers had one of those moments where he had to make a decision on whether it was prudent to change a play before the snap.
The offense was in a run formation with Grant as the single back and Rodgers under center. Seeing that the Titans were in a single-high coverage, leaving receiver James Jones one-on-one to the right, Rodgers called an audible, moved into shotgun formation and directed Grant to move next to him.
Grant had to step up and take on blitzing linebacker Tim Shaw so Rodgers would have enough time to hit Jones for a 21-yard gain. Had that been Harris, it would have been a questionable decision.