Steve Keim has looked at his offensive line since the day he started. He signed Jared Veldheer and Mike Iupati as his most high-profile free-agent additions. He drafted D.J. Humphries with the idea he could eventually upgrade at tackle over Bobby Massie. He signed Evan Mathis as a veteran to be the other guard this season.

We know how it's turned out so far.

Veldheer and Mathis are done for the season with injuries. Humphries has gone through growing pains this year after sitting all of last year. Iupati, banged up himself, has struggled of late. Fellow guard Earl Watford, Mathis' replacement, has also been banged up this week. The players off the bench are inexperienced.

As Carson Palmer said this week, continuity is ideal along the line -- and the Cardinals have not had continuity. Not anymore. That isn't to say there weren't issues anyway, but juggling up front is not what you want. The Cardinals will likely need to score Sunday in Atlanta, since the Falcons are the league's top scoring team. We might see a steady diet of David Johnson running, but it's not like the Falcons don't know that either. In a season of up-and-down offensive production, the tenuous nature of the offensive line has not helped.

"We'll have five of them out there, for sure," coach Bruce Arians said.

-- Michael Floyd might yet play Sunday even after hurting his hamstring and missing Thursday and Friday on the practice field. But it seems like anything that could go wrong for the free-agent-to-be wide receiver this season has.

-- Falcons wide receiver Julio Jones will have Patrick Peterson on him most of the game Sunday. Teams have sometimes had a cornerback "travel" to cover Jones, but Jones said it usually comes with a caveat.

"Teams have been trying to do that, but they've been playing a lot of two-man while they were doing it," Jones said. "They'll take their 'OK' corner and put him over me and then just have safety help, and try to put the better corner on the other side, try to let him lock that side down. Pat P, it's just usually one-on-one."

-- So it turns out neither Peterson -- for his unnecessary roughness call for knocking down QB-turned-WR Sam Bradford -- or Tony Jefferson -- for his hit on the still-trying-to-go-forward Stefon Diggs -- were fined for their play. It's fair to wonder if that means the league disagreed with the calls. Vikings defensive tackle Tom Johnson was fined $18,231 for his fourth-down hit on Palmer that extended the Cards' final drive.

-- The Vikings offensive linemen weren't happy with Peterson about the hit. But Arians defended his player, not surprisingly, starting with the fact Bradford was lined up as a wide receiver and no longer had quarterback protections.

"That's my understanding, and he just threw a flea-flicker on the exact same play, so don't let it happen," Arians said. "(Peterson) did what he was coached to do."

As for the Vikings offensive linemen being upset, "Well, they shouldn't have threw the flea-flicker the first time then," Arians said. "He ain't going to let it happen a second time."

-- The Cardinals are trying to get past an interception drought. They have now gone four games without one, the last time picking off an opposing QB coming way back on Oct. 17 when they nailed Ryan Fitzpatrick twice. Matt Ryan has just five interceptions this season (compared to 24 touchdown passes) but the Cardinals have gotten to Ryan in the past. He threw four interceptions against the Cardinals in Arizona in a 2013 game, and five picks in a game against the Cards in Atlanta in 2012. (Alas, the Cards still lost that 2012 matchup.)

-- If Carson Palmer throws two touchdown passes, he'll surpass Joe Montana on the all-time TD passes list. Palmer sits at 272, Montana 273.

When Palmer was asked about it, his response just reinforced to me my thought Palmer has every plan to play in 2017, regardless of how this season has gone/will go.

"What excites me about the game is the anticipation for Sunday, the process, going through and getting mentally prepared and physically prepared, obviously," Palmer said. "There is no doubt that it would be an honor to do that, but I love playing the game because I love Sundays."

-- So atlantafalcons.com apparently does weekly simulations about the game ahead, and this week, they had the Cardinals winning the game, 21-19, behind David Johnson's two touchdowns. So there's that.