"I always say, it's like B.A. is playing Madden," Ellington said Wednesday, via the team's official website. "He has so many talented players that he can pretty much call anybody at any time, and we're all able to execute."
The Cardinals can't sit the elder Johnson, who has regained his early-career playmaking ability and excelled in pass protection.
"He's a great protector (and) really, really smart," Palmer explained. "He picked up the offense as fast as anybody picked it up since I've been here."
Between CJ2K's running ability and Ellington's receiving chops, the rookie's role will be reduced following a fumbled kickoff and dropped touchdown pass in last week's loss to the Rams.
"It's not hard (to divvy up snaps)," Arians said, "because the young guy sits down."