STATE COLLEGE — Study time is over at Linebacker U.

No. 12 Penn State has steamrolled to a 4-0 start over a quartet of overwhelmed foes, nonconference mismatches that have allowed the fresh faces at linebacker to ease into their new roles.

The grace period ends Saturday night, when dual-threat quarterback Juice Williams and No. 22 Illinois come to Happy Valley in the Big Ten opener for both teams.

Williams leads the Big Ten in total offense with 313.7 yards per game. No wonder Penn State coach Joe Paterno is fretting about trying to stop him.

"There's no best way. It isn't as if you can gang up on one aspect of the game," Penn State's Hall of Fame head coach said. "They're going to move the football. We're not going to contain them."

That gloom-and-doom scenario may not be what Penn State's linebacking corps wants to hear. It's a unit that's relatively young, but deep in talent; athletic, but not very seasoned.

Lots of potential, but, for now, no stars.

It's a far cry from the last couple years, when Bednarik Award winners Paul Posluszny and Dan Connor manned the middle. Sean Lee would have received top billing this year if not for sustaining a season-ending right knee injury in spring practice.

So it will be up to lesser-known names like senior Tyrell Sales, a Butler graduate, and new starters Josh Hull and Navorro Bowman to help squeeze down on Juice.

"You just have to always be on your toes, be ready for anything," said Bowman, who earned Big Ten defensive honors for his three-sack, one interception performance against Temple last week. "He's an extra threat on the field. We'll be ready for that this week."

Williams, for his part, isn't buying the argument that Penn State's linebacking corps may not be as good as last year's starting trio of Connor, Lee and Sales.

Statistically, the Nittany Lions have been a defensive force so far, holding opponents to 52 rushing yards and 10 points a game. It's more than enough cushion for a Penn State offense lighting up the scoreboard like a pinball machine.

Bowman, who entered the starting lineup last week against Temple, has shown the athleticism to be a possible force down the road. Sales is the experienced on-field leader with Lee resigned to an unofficial coaching role on the sideline. Bani Gbadyu and Chris Colasanti supply quality depth.

"I can't really see the difference, even in the absence of Sean Lee," Williams said. "They're not called Linebacker U. for no reason."