KARNS CITY — It’s always a chore to get the 411 in Week 1.

Karns City football coach Ed Conto watched two scrimmage tapes on Week 1 opponent Brookville, which after a 6-5 season is replacing most of its skill position players.

“They do seem to have a whole new cast of characters,” Conto said.

The only problem is Conto has no idea who they are.

“The roster numbers don’t add up to the scrimmage jerseys,” Conto said.

That’s OK. Week 1 isn’t always about out-gameplanning the opponent, Conto said, but more about executing your own stuff.

The Gremlins plan to do that against the Raiders when the two teams kick off the season at Diehl Stadium at 7 p.m. Friday.

“There’s a lot of what-ifs in that first game,” Conto said. “It’s a little tough that first week because you watch the scrimmage film, but you don’t know if that is what they are going to run when the season starts.”

There’s no such mystery for Conto and his offense, an option attack that has operated will for more than a decade.

The only question is who will run it under center?

Cody Deal and Caleb King have been competing in camp for the starting nod. Neither one has won the job.

Or lost it.

“Both kids played well in the scrimmages,” Conto said. “We still don’t know if we are going to go with one or play both. It’s been a really tough call.”

Conto hasn’t ruled out a rotation system Friday or beyond.

For Brookville, the task is replacing all-everything back Zach Vroman, who rushed for 1,819 yards and 19 touchdowns last season.

He had 160 yards in a 42-6 loss to the Gremlins last season.

Brookville’s leading returning rusher, Jonah Sampson, had 445 yards on the ground last season.

Punxsutawney at Moniteau7 p.m., FridayLast year: Punxsutawney 3-7, Moniteau 3-7Numbers: Cody Skiver runs the show for the Warriors. The senior QB combined for 1,600 yards passing and rushing and accounted for 12 TDs last season. ... Punxsy QB Dakota Thomas passed for 191 yards and three TDs last season. ... Chucks returning leading rusher, Perry Arrington, gained 282 yards on the ground last season.Notes: Moniteau beat the Chucks 36-0 last season.

Cardinal Wuerl North Catholic at Northgate7 p.m., FridayLast year: North Catholic 16-0, Northgate 2-8.Numbers: The Trojans are looking to win their 17th straight game in their Black Hills Conference opener. ...North Catholic’s leading returning rusher, senior RB P.J. Fulmore, finished last season with 1,246 yards and 14 TDs. ...Trojans’ QB Adam Sharlow will return to the lineup for the first time since a Week 8 win over Neshannock last year due to a knee injury. ...The Flames will be led by T.J. Wiley, who is in his second stint at Northgate. ... Northgate QB Johnny Carmello played under Wiley during his first stint.Notes: North Catholic beat Northgate 42-6 last season.

Union at Keystone7 p.m., FridayLast year: Union 4-7, Keystone 1-9.Numbers: The Panthers struggled all-around last season, earning only a 33-14 win over a winless A-C Valley. ... Keystone returns junior QB Austin Chambers, who passed for 1,119 yards and five touchdowns last season. Chambers lost his top three targets from last season and will count on juniors Jacob Weaver and Chad Rodgers to step up. ... Union senior quarterback Lane Cicciarelli set a school record for passing yards in a season with 1,682 yards and also tossed 18 touchdowns last year.Notes: Union leads the all-time series 31-23-1.

A-C Valley at Clarion7 p.m., FridayLast year: The Falcons finished 0-10. ... The Bobcats went 14-1, with their only loss coming by a score of 39-12 to the WPIAL champ, Cardinal Wuerl North Catholic, in the state semifinals.Numbers: A-C Valley will start junior Evan Redding at QB. He should prove valuable in both the air and ground attack in the team’s power-I offense, passing for 723 yards and rushing for 219 last season. ... Clarion graduated most of its key offensive skill players from a year ago, with one of the few exceptions being RB Ian Corbett, now a senior. Last year, Corbett rushed for 1,247 yards and 20 touchdowns.Notes: A-C Valley last defeated Clarion in 1998 (22-6). ... The Bobcats won last year’s meeting 55-0.

Shady Side Academy at Freeport7 p.m., FridayLast year: Shady Side Academy 8-2, Freeport 2-7.Numbers: The Indians want to start strong after their season ended with a 42-21 loss in the WPIAL Class AA first round to Beaver. ... SSA returns its leading WR, Lewis Berry IV, but will need to replaced its starting QB and its top three rushers. ... The Yellowjackets are led by dual-threat quarterback senior Andrew Romanchak, who led the team in passing (586 yards) and rushing (388) last season.Notes: Shady Side Academy beat Freeport 28-0 last season.

Wilmington at Grove City7 p.m., FridayLast year: Wilmington 5-4, Grove City 5-5Numbers: Jared Graham will embrace a new offensive attack in GC this season. The senior passed for 593 yards and rushed for another 412 last season. ... Wilmington senior QB Cody Llewellyn returns under center after posting 609 yards passing and 10 TDs last season ... The Greyhounds started 5-2 last season with three wins by shutout before falling in the final two contests.Notes: Wilmington dropped to Class A this season. ... The Greyhounds suffered a key injury when 6-foot-5 WR Marc Peoples suffered a broken clavicle in a scrimmage. ... The Eagles beat the Greyhounds 17-13 last season.

Ellwood City at Summit Academy12:30 p.m., SaturdayLast year: Summit Academy 5-5; Ellwood City 4-5.Numbers: The Wolverines return their top three rushers — junior Paul Lutz (430 yards), sophomore Nick Ioanilli (381) and junior Dillon Horgan (128) — from last season. ... The Knights only return one contributor from their first-ever playoff team last year. Dametrious Addison scored a touchdown for Summit Academy and will figure prominently in its rushing attack.Notes: This is the first-ever meeting between the two schools.

Slippery Rock at Perry1 p.m., SaturdayLast year: Slippery Rock 10-1, Perry 3-6Numbers: The Rockets return 11 players who rushed for more than 100 yards last season, including Travis and Ryan Lauster, who combined for more than 1,200 yards and 10 yards per carry. ... Perry’s roster is down from 35 players last year to a mere 22. ... Perry won seven City League titles in 13 seasons under coach Bill Gallagher, who resigned in February. Former Langley coach Ken Wright replaced him.Notes: Perry is led by quarterback Shawn Rutherford, who is the son of former Pitt and NFL player Rod Rutherford.