FORT WORTH, Texas — TCU has spent much of the week preparing for what it does not know about North Carolina.

Bobby Petrino is calling the Tar Heels’ offense for the first time, Billy Edwards Jr. will make his first start at quarterback and Steve Belichick remains on medical leave, leaving Bill Belichick and the rest of the defensive staff to divide responsibilities. Sonny Dykes has coached enough season openers to understand how easily a team can spend August trying to prepare for every possible formation, pressure package and personnel wrinkle that has not appeared on film yet.

His message to TCU has been considerably simpler. Play clean, protect the football and be ready to adjust once North Carolina shows what it actually intends to do.

Last season’s 48-14 win in Chapel Hill provides useful information, but only if TCU treats it as evidence rather than a prediction. The Horned Frogs finished with 542 yards of offense, including 258 on the ground, while North Carolina managed only 222 total yards and converted one of 10 third downs. TCU also scored two defensive touchdowns, turning a game it already controlled into a rout.

Saturday’s rematch in Dublin begins from a much different place. TCU has a new quarterback and new offensive structure, while North Carolina has changed the system around Edwards and enters the opener with several unknowns of its own. The final score from last September matters much less than whether TCU can win the individual matchups that allowed the Horned Frogs to control that game in the first place.

These four should tell the most about where the opener is headed.

1. TCU’s Tackles Against Melkart Abou Jaoude

North Carolina edge rusher Melkart Abou Jaoude gives the Tar Heels their clearest opportunity to make Jaden Craig uncomfortable without having to manufacture pressure.

Abou Jaoude finished 2025 with 10.5 sacks and 12 tackles for loss, leading the ACC in sacks and ranking fifth nationally. That kind of production allows a defense to create problems with four rushers, which becomes especially important against a quarterback making his first Power Four start.

TCU has an established option at tackle in Ben Taylor-Whitfield, but the Horned Frogs rotated several combinations throughout camp and continued working through competition at the position late into August. That makes the edge of the protection one of the first places Bill Belichick can test.

If TCU handles Abou Jaoude without consistently committing a tight end, running back or extra blocker to him, Craig should have enough numbers available in the passing game to work through North Carolina’s coverage. If Abou Jaoude begins winning quickly with a four-man rush, the entire structure changes. North Carolina can keep more defenders in coverage, close throwing windows and force Craig to hold the ball longer than TCU wants.

That becomes especially important early. TCU does not need Craig to carry the offense immediately, but the Horned Frogs do need him comfortable enough to operate on schedule. Allowing North Carolina’s best pass rusher to wreck the pocket without defensive help would make that much harder.

2. TCU’s Defensive Front Against North Carolina’s Offensive Line

North Carolina’s attempt to fix its running game starts with an offensive line that remains one of the biggest questions around the Tar Heels.

TCU held North Carolina to only 50 net rushing yards in last September’s meeting, taking away the easiest part of the offense and consistently forcing the Tar Heels into obvious passing situations. That allowed the Horned Frogs to attack third down instead of defending the entire playbook.

Inside Carolina’s Greg Barnes identified the offensive line as his biggest concern entering the opener, with veteran center Christo Kelly particularly important to keeping the middle of the offense stable. Aidan Banfield gives North Carolina experience at guard, while Jacqawn McRoy and Jordan Hall are among the larger tackle options surrounding a group that has more size than established continuity.

That puts one of North Carolina’s least-settled units directly across from one of TCU’s most experienced.

Markis Deal, Ansel Din-Mbuh and Paul Oyewale enter the season with a combined 89 games and 43 starts. That experience gives TCU an opportunity to control the matchup without immediately committing extra defenders toward the line of scrimmage.

Petrino has made improving the running game a priority, and Demon June returns after leading North Carolina with 464 yards on 84 carries as a freshman. Edwards also gives the Tar Heels another athlete in the backfield, which means TCU cannot treat the run game as something North Carolina will abandon after a few unsuccessful possessions.

The best way to simplify everything behind the defensive line is to win with the front four. If Deal, Din-Mbuh and Oyewale can control early downs, North Carolina will have to ask Edwards to convert obvious passing situations before Petrino can fully use the misdirection and vertical passing elements he wants.

That would also help TCU’s secondary. Jamel Johnson and the players around him will have enough to manage against a new offensive system without constantly having to insert themselves into the run fit. If the defensive line handles the first responsibility, the rest of the defense becomes much easier to organize.

3. Jordan Shipp Against TCU’s Reshaped Secondary

Jordan Shipp was one of the few North Carolina players who consistently found room against TCU last season.

He caught four passes for 84 yards in the opener and eventually finished the year with 60 receptions for 671 yards and six touchdowns. His production increased late, with 31 catches for 351 yards over North Carolina’s final five games, giving Edwards a proven target as the Tar Heels transition into Petrino’s offense.

That matters because TCU’s secondary no longer looks the way it did in Chapel Hill.

Bud Clark is gone, and Jacob Fields was dismissed during camp, removing two pieces from a defensive backfield that already needed to establish new combinations. Johnson returns after finishing second on the team with 96 tackles and tying for the Big 12 lead with five interceptions, making him the most established piece in the back end.

His responsibility Saturday will go beyond simply covering one receiver.

Johnson said this week that North Carolina wants to establish the run and then push the ball vertically, and Shipp is the returning receiver most capable of making that second part work. Petrino has spent much of his career creating opportunities through formations, shifts and personnel movement rather than leaving his best receiver in the same place every snap.

That puts pressure on TCU’s communication as much as its coverage ability. Johnson may not follow Shipp everywhere, but he will have to help the players around him stay aligned when North Carolina changes formations, creates stacks or tries to isolate a less-experienced defensive back down the field.

TCU can survive some completions underneath. What the Horned Frogs cannot afford is Shipp repeatedly getting free vertically because the secondary is still sorting out responsibilities after the snap.

If TCU keeps him in front and forces North Carolina to sustain long drives, the advantage moves toward the Horned Frogs. If Shipp begins creating explosive plays, Petrino’s offense becomes much more difficult to manage.

4. Jeremy Payne and TCU’s New Run Game Against North Carolina’s Front

TCU ran for 258 yards in last season’s meeting, but the importance of the running game has changed entering 2026.

Gordon Sammis was hired after the Horned Frogs averaged only 3.9 yards per carry last season, and Dykes has repeatedly said he wants a more dependable ground game to take pressure off the quarterback. That becomes especially important with Craig making his first Power Four start in an opener where North Carolina’s exact defensive structure remains difficult to predict.

Jeremy Payne gives TCU a proven place to start.

Payne rushed for 623 yards on 110 carries last season, averaging 5.7 yards per attempt, and produced much of his best work during the second half of the year. TCU has spent camp emphasizing outside zone and a more physical approach up front, hoping to make the run game something defenses have to account for rather than something the offense uses only to keep them honest.

Dykes believes the change has helped more than the offense because TCU’s defense has had to practice against that physical approach throughout camp.

Saturday provides the first real test of whether that work translated.

If Payne can consistently keep TCU ahead of the chains, Craig will not have to spend his first Power Four start converting third-and-long against a defensive staff that has had an entire offseason to prepare pressures nobody has seen yet. The Horned Frogs can stay balanced, use play action and force North Carolina to defend the entire field.

If the run game stalls, Craig’s responsibility increases quickly. North Carolina can turn its attention toward the passing game, allow Abou Jaoude and the rest of the front to attack obvious protections and make TCU solve a defensive structure it has not been able to study on current film.

That is why Payne’s production may matter more than the final rushing total. TCU does not necessarily need another 258-yard performance. It needs enough efficiency on early downs to make sure Craig is not asked to win the opener by himself.

The Opener Will Probably Come Back to Execution

For all the new coordinators, quarterbacks and unknown schemes surrounding Saturday’s game, Dykes expects the outcome to come down to the same things that usually decide August football.

Turnovers will matter. Penalties will matter. Special teams will matter, and so will the handful of contested plays where one team has an opportunity to change possession or create an explosive gain.

TCU won most of those moments in Chapel Hill last season. The Horned Frogs scored twice on defense, controlled the running game and kept North Carolina from extending drives, which allowed the final margin to become much larger than the difference between the teams on every individual snap.

Saturday begins with different personnel and a different setting, but the standard Dykes has set for the opener has remained straightforward.

“Which team can go out and execute the best, make the fewest mistakes and make some plays,” Dykes said. “That’ll probably determine the outcome of the game.”

The four matchups above should determine who gets the better opportunity to do exactly that.