Matt Campbell still hasn’t figured out Penn State’s identity. These numbers show why.

It was hard to know what to expect in Penn State’s first season under coach Matt Campbell.

What we do know is that the schedule played in the Nittany Lions’ favor, they had the winningest quarterback returning to college football, and a coach who had always done more with less at Iowa State.

Penn State is 3-4 entering its bye week, but winless in conference play and lost its last four games. It hasn’t been pretty, and the fanbase is in uproar. Campbell even said his team doesn’t have an identity. The offense has no run game, while Rocco Becht’s play continues to decline.

» READ MORE: Matt Campbell reinforces Penn State’s ‘complete faith’ in starting quarterback Rocco Becht

“The reality is, we have to form an identity,” Campbell said Tuesday. “We have to form who we’re going to be. … I think we’ve grown a great deal in the last three weeks.”

Let’s look at five numbers that explain why Penn State has struggled this season:

Penn State is averaging 2.5 yards per carry against Big Ten competition.

The Nittany Lions have averaged 2.2 yards across its last three games against Northwestern, Southern California, and Michigan. Though, it makes sense they struggled against the Wolverines, who boast one of the premier defenses in the country.

But the other two defenses have given up over 100 rushing yards per game, and Penn State only garnered 116 rushing yards across those pair of matchups.

Iowa State transfer Carson Hansen has been the No. 1 running back for the majority of the year with 72 carries. Meanwhile, Ohio State transfer James Peoples earned one start and has 57 attempts.

Hansen is averaging 3.9 yards per carry, while Peoples is sitting at 4.3. And those numbers are a bit inflated from when the Nittany Lions dominated Buffalo on the ground, which was the only contest they were able to consistently run the ball.

Linebacker Tony Rojas has 10.5 tackles for loss this season, which ranks second in the Big Ten. He also has five sacks, four more than any other player on Penn State’s defense and is tied for third in the conference.

Rojas has been the rock of a Nittany Lions defense who has struggled at times during their four-game losing streak, and has emerged as the best pass rusher and tackler.

The Penn State returnee is a gifted athlete, but he hasn’t had a chance to live up to his potential until now. He played through injury his sophomore year and tore his ACL just four games into last season after getting off to the best start of his career.

Rojas was named to the AP and Sports Illustrated midseason All-America second-team, while On3 gave him first team honors. He’s quietly become one of the best linebackers in college football and is trending toward having his name on the All-America wall of Penn State’s Lasch Football Building.

The Nittany Lions’ pass defense is the best in the Big Ten, allowing just 141.3 yards per game.

That’s in large part due to the cornerback room, which had the least turnover this offseason after longtime cornerbacks coach and last year’s interim head coach Terry Smith decided to stay with Campbell.

» READ MORE: Is it time to bench Rocco Becht? Matt Campbell says ‘there’s never consideration.’

Redshirt senior Audavion Collins has been one of the best corners in the country with eight pass breakups. Sophomore Daryus Dixson has also stepped up to the occasion, tallying one interception, two pass breakups, and ½ tackle for loss.

Penn State did struggle against Southern California’s high-powered passing offense, allowing quarterback Jayden Maiava to throw for 301 yards and three touchdowns. But otherwise, the Nittany Lions have let up just two passing touchdowns this year.

While they may have looked legit in the three nonconference games, the Nittany Lions’ offense has had a hard time putting points on the board the last four weeks.

Offensive coordinator Taylor Mouser’s unit is scoring 28.7 points per game, a number that inflated from Penn State’s 45- and 55-point performances in Weeks 1 and 3.

» READ MORE: Delco native Anthony Becht, who starred at Bonner-Prendie, is watching his son, Penn State QB Rocco, follow in his footsteps

Penn State scored just 13 offensive points in each of its first two Big Ten games, although it took a step forward against the Trojans, scoring 23. But that was the only game the Nittany Lions scored more than 20 points on offense during their losing skid.

The Nittany Lions are scoring a touchdown in the red zone just half the times they make it there.

Finding the end zone has been difficult for Penn State once it reaches the 20-yard line, with the best example of that coming against Michigan. On their first drive of the afternoon, the Nittany Lions drove down the field before they stalled out at the 6-yard line and settled for a field goal.

The lack of touchdowns in the red zone can be attributed to Becht’s struggles during Big Ten play and the lack of a run game, but it’s still crucial for Penn State to increase its conversion rate if it wants to win games moving forward.