The Los Angeles Rams got back on track Sunday with a big win over their division rivals, the Arizona Cardinals. They cruised to a 45-17 win on the road, improving their record to 10-3 with four games remaining.More importantly, they maintained their lead over the Seattle Seahawks in the NFC West as both teams sit at 10-3. It was a crucial victory for the now-top-seeded Rams, taking back the No. 1 spot in the conference with their win and the Bears’ loss.Here’s what we learned in the Rams’ 28-point victory over Arizona.Rams were nearly perfect on offenseThe Rams did pretty much whatever they wanted on offense. If they wanted to run it, the holes were huge for Kyren Williams and Blake Corum. When Matthew Stafford dropped back to pass, he had little trouble finding open receivers downfield. Puka Nacua made great catch after great catch, while Colby Parkinson also had another good game with 32 yards and a touchdown.It was a quiet day for Davante Adams, who Stafford missed in the end zone after the receiver got open, but plenty of other pass catchers chipped in and contributed to the Rams’ offensive dominance. In the first half alone, they had 17 first downs and 306 total yards.Coverage still needs to improveIt seemed like early in the game that the Rams would have no answer whatsoever for Michael Wilson and Trey McBride. McBride had 45 yards on two catches during the opening drive and Wilson caught a 19-yard touchdown pass from Jacoby Brissett to cap off the first possession. Things did get better as the game went on and the corners got comfortable, but the coverage on the back end still needs to improve. Matthew Stafford bolsters MVP caseAfter a down week against the Panthers that let Drake Maye take over as the MVP favorite, Stafford bounced back with a statement game in Arizona. He threw for 281 yards and added three more touchdown passes to his total, giving him seven straight games with multiple touchdown passes – the longest single-season streak in Rams history.He now has 35 touchdown passes and only four interceptions, looking every bit like the league MVP after 13 games. It’s officially a two-headed monster at RBThe Rams no longer have a workhorse back in Kyren Williams. They have a 1A and 1B in the backfield. Blake Corum is every bit the playmaker that Williams is and he showed that on Sunday with the best game of his career. Corum rushed for 128 yards and two touchdowns on only 12 carries, capping off the day with a 48-yard touchdown run to give the Rams a 45-10 lead. Williams is still technically the starter and had more carries (13 to 12) than Corum, but they’ve become equals in the backfield when it comes to touches and carries.Rams miss Quentin LakeIt was evident early in the game that the Rams miss Lake in the secondary. They couldn’t cover Trey McBride or Michael Wilson but the defense settled in and started to play better after the opening drive. Still, Lake’s tackling, coverage skills in the slot and leadership in the secondary are missed. He’s a tough player to replace and though Josh Wallace has done a nice job in the slot, the Rams will need Lake for their playoff run if he’s able to return from his elbow injury.Nate Landman deserves to be a Pro BowlerLandman continued his strong debut season with the Rams on Sunday by recording two more tackles and a spectacular leaping interception on a throw over the middle where he read Jacoby Brissett’s eyes. He’s been a star for the Rams all year and deserves to at least be a Pro Bowler, if not an All-Pro. His impact on defense has been nothing short of impressive, both against the run and in coverage.This article originally appeared on Rams Wire: Rams vs. Cardinals: Takeaways from LA’s impressive 45-17 win