FAYETTEVILLE — Arkansas defensive coordinator Robb Smith hadn’t started breaking down film of Texas A&M’s offense when he met with the media Sunday.

FAYETTEVILLE — Arkansas defensive coordinator Robb Smith hadn’t started breaking down film of Texas A&M’s offense when he met with the media Sunday.

He didn’t have to predict what was in store over the next several days, though.

"There’s no doubt there’ll be not a lot of hours of sleep this week," Smith said. "But that’s part of the fun of it. We’re anxious to get going on the plan."

Arkansas (3-1, 0-1 in SEC), fresh off another solid defensive performance, faces a big test as it begins preparation for Saturday’s game against No. 6 Texas A&M (4-0, 1-0) in Arlington, Texas. The Aggies are off to a 4-0 start — the program’s best since 2006 — under third-year coach Kevin Sumlin thanks to an offense that has established itself as one of the nation’s most explosive groups once again.

It hasn’t mattered that three offensive players were selected in the first round of the 2014 NFL Draft (quarterback Johnny Manziel, wide receiver Mike Evans and offensive tackle Jake Matthews). The Aggies retooled around the next wave of talent and will step into Cowboys Stadium ranked second in the nation in scoring (55.2 points a game) and total offense (612.5 yards a game).

Arkansas coach Bret Bielema said it’s an impressive accomplishment.

But it’s no surprise considering Sumlin’s track record of success.

"I’ve known Kevin for a long time," Bielema said. "He’s extremely confident. … They just expect success, and they recruit very, very well."

The transition from an offense revolving around Manziel’s remarkable talents has been smooth because of the quarterback following him. Sophomore Kenny Hill, who won the job in preseason camp, has wowed in his first four starts.

Hill made a splash in his debut, carving up South Carolina’s defense for a school-record 511 passing yards in a 52-28 win. He hasn’t slowed down. Hill is 97-for-139 for 1,359 yards with 13 touchdowns and one interception in four games.

He ranks sixth in the NCAA in passing yards and third in touchdown passes. Hill is in charge of an offense averaging 8.1 yards per play this season.

"He’s extremely efficient," Bielema said. "I think they didn’t try to carbon copy what Johnny did. Obviously he’s his own guy. He’s a very confident thrower. Makes a lot of really tight windows, but also can read and understand where to go with the ball when it’s not there. He doesn’t try to force anything. I think offensively they lost, obviously, a very good receiver, a couple good receivers. But they’ve been able to recruit a certain level of expectation there and their run game is efficient as well."

Trey Williams (29 carries, 208 yards, 4 touchdowns) leads a Texas A&M ground game averaging 207.5 rushing yards. Six receivers have 12 catches or more led by senior Malcome Kennedy (30 receptions, 334 yards, TD).

So Arkansas will have to stand up to an offense excelling on all fronts. The good news: the Razorbacks carry confidence into the week after solid performances in wins against Nicholls State, Texas Tech and Northern Illinois.

Arkansas — which surrendered 45 points in its opener at Auburn — limited the three teams to seven touchdowns. The Razorbacks deflected or intercepted 13 passes against pass-heavy Texas Tech. They held run-heavy NIU to 37 rushing yards through three quarters and limited them to 123 in the game.

So Bielema said it has been a solid stretch for the group, which has climbed to 55th in the nation in scoring defense (23.5 points a game) and 57th in total defense (373.2 yards). But plenty of important tests still await, beginning with the Aggies.

"They’ve built that confidence because of what they’ve done and you don’t want to take that away from them," Bielema said about his defense’s performance in the win streak. "But I do think you have to kind of remind them, what have you done?"

Arkansas believes its experience against spread offenses in wins against Texas Tech and NIU will prove helpful in preparing to defend the Aggies.

NIU, which spread the field, entered the game with success running and throwing. Texas Tech leaned on its passing offense more, but the similarities to Texas A&M’s attack are clear. Coach Kliff Kingsbury was Sumlin’s offensive coordinator.

"The Texas Tech game is going to be important for us because it is very similar offensively," Smith said. "I think both sides are going to be looking at that game. We’re going to be looking at what could have happened if this happened and I’m sure they’re going to be looking at it to see if they can expose something."

Bielema said Texas A&M isn’t "that unusual compared to what we see," but that doesn’t mean it’s easier to slow down the Aggies because of their impressive talent and execution. But the Razorbacks believe their blueprint for success — a solid ground game and a confident defense will help Arkansas win its fourth straight.

"When we’re out there we’ve got to stop them and play our brand of football," Smith said. "How many snaps we’ve got to play we’ll play. But there’s a certain style and certain way we want to play and if we are able to do that we’ll be successful."