Steve Keim knows the 0-3 start of the Cardinals isn't good, and talked Friday morning of some of the issues, but at least he has a rookie quarterback to watch grow. And that's what the GM said he'll be looking for from Josh Rosen. Literally.

"Just to see growth," was Keim's top priority in evaluating Rosen going forward, he said during the "Doug and Wolf" show on 98.7, Arizona's Sports Station. "We all know with young quarterbacks, there are a number of things that are challenges. Regurgitating the play in the huddle, making sure you have the right tempo, watching the play clock, making sure you can make your motions and adjustments, making sure you know your 'hots' and 'sights.' All those things a young quarterback has to take into account."

Keim said the things he's seen in Rosen both in college and in his brief time in Arizona makes Keim comfortable in thinking starting this early "isn't too big for him." The GM also thought Rosen already showed some good things in his brief time on the field last week.

"We all know there are going to be growing pains but every snap he takes to me is a step forward," he said.

-- On veteran Sam Bradford, a lot of the things that Bradford did well in the past, "I thought escaped Sam in this offense."

In terms of the quarterback room, "as of right now, we'll carry three" QBs, and he did not get into whether Bradford -- who would be owed a per-game bonus every time he is part of the active roster on game days, and would not get it if he is in inactive -- will be the active backup.

"Those will all be football decisions," Keim said, noting that he and coach Steve Wilks will discuss the players who will be inactive before the game. Keim said that QB decision will be made based on what the team needs each week. "We won't get consumed with the money part of it."

-- On the subject of David Johnson's lack of touches, Keim also didn't get into specifics.

"I'm just frustrated in general, number one," Keim said. "Number two, I'm frustrated with offensive output, because I feel like we have underachieved. Whether it's David Johnson, whether it's Larry Fitzgerald, people have to step up. Sometimes it's a number of different reasons we're not having that production. ... I certainly would like to see David more involved, Chase Edmonds as well. I think the one thing that is exciting is the evolution of Christian Kirk."

In terms of how the Cardinals are using Johnson within the offense, "I really think it's not just about David. It's all of us in this building. It's not the offensive coordinator, it's not the head coach, not just David or the quarterback, it's the organization that's in this boat together. We have to bond together and make sure we make the improvements that are necessary. Those are the conversations we're having behind closed doors."

-- Keim said the offensive line is inconsistent. "Those guys need to learn how to play in unison," he said.

-- Finally, on the subject of first-round picks Deone Bucannon and Haason Reddick not getting on the field, "they are still growing and learning in the defense, but still have high hopes for both of those guys."