LOUISVILLE, Ky. — Louisville head coach Bobby Petrino has still not named a starting quarterback for today’s 7:30 p.m. kickoff against No. 9 Clemson.

So far this season, Petrino has played three quarterbacks and has had moderate success with each. Most are expecting freshman Lamar Jackson to get the start against the Tigers at Papa John’s Cardinals Stadium in Louisville, but Petrino indicated in Wednesday’s ACC Coaches Teleconference that sophomore Kyle Bolin probably has the best understanding of the offense.

“Kyle came in last week and operated the offense. He understands how the offense works and his experience shows,” Petrino said. “He was able to distribute the ball and allow us to move it down and get a couple touchdowns.”

Bolin was 10 of 18 for 157 yards and a touchdown in the Cardinals’ loss to Houston last Saturday as he led them to two touchdown drives in the fourth quarter after he replaced Jackson. The true freshman had some success throwing the ball, but he struggled with his decision making at times. He hesitated to run, did not get the ball out of his hands at times fast enough to allow the play to develop and he threw two costly interceptions.

Jackson completed 17 of 27 passes for 168 yards and one touchdown before being taken out.

“We’ve been able to see the talent and the excitement that Lamar has and his ability to throw the ball and run the football, but he is very young,” Petrino said. “It’s a different game between high school and college, but we’re going to keep working at it, have him improving. He is a very electrifying player with great ability.”

Louisville’s up and down play from the quarterback position has caused the Cardinals to get off to their first 0-2 start since 1998. Sophomore Reggie Bonnafon, who started against Clemson last year, opened the season as the starter against Auburn, but was replaced by Jackson in the third quarter when he failed to lead Louisville on any scoring drives.

“We didn’t think we’d be sitting here 0-2,” Petrino said. “We’ve had two very competitive games. We knew we had a really challenging opening schedule and two very good football teams. But we felt like we had our opportunities to win both games. We are young, so what we have to do is learn how to win, not how to make mistakes and lose games, so that’s something that we’re working extremely hard at.”

Tough task for FSU. Florida State head coach Jimbo Fisher says Boston College has been the better team the last two years when the Seminoles played them, and they have been fortunate to beat them both times.

Two years ago, No. 6 Florida State found itself trailing the Eagles by 14 points before a Hail Mary pass at the end of the first half turned the game around and led to a Seminoles’ victory. Last year, BC went to Tallahassee and had the Seminoles backed up against the wall with a chance to win the game late, but it failed to execute in the final minutes and lost a heartbreaker.

The Seminoles (2-0) open up the ACC part of their schedule on Friday night (8 p.m.) at Boston College, a team that has outscored their first two opponents 100-3 to open the season.

BC leads the nation in total defense and five other defensive categories heading into the ACC opener with the Seminoles.

“They do a great job on defense, a lot different blitz looks, a lot of packages, a lot of multiple coverage things that they do,” Fisher said. “They do a heck of a job. And then offensively they go no-huddle and the four- and five-man services, all the throwbacks, all the quarterback runs. They do a great job there, and they’re always extremely sound in the kicking game, so we’re going to have to play an extremely good football game.

“It’s going to be a great challenge. We dealt with a weather delay, we’ve dealt with weather, we’ve dealt with being tied at halftime and having to come back, and were able to play a great second half. Now we’ve got to take these guys on the road to the next challenge out there, and it’s going to be a very tough game.”

Tech heads to South Bend. After getting back-to-back wins against Alcorn State and Tulane, in which it scored an ACC record 174 points in its first two games, No. 15 Georgia Tech heads to South Bend to battle No. 10 Notre Dame on Saturday, 2:30 p.m.

The Irish (2-0) have opened up with victories over Texas and Virginia, but have lost five starters for the season in the process, including quarterback Malik Zaire. The Irish will go with young quarterback DeShone Kizer against the Yellow Jackets. He came in relief to throw the game-winning touchdown pass in the final seconds to beat the Cavaliers last week.

“Certainly he’s very poised. I mean, to come in in the situation he came in and take his team down to win the game was really special, I think, for a guy to come off the bench and have the composure to do that,” Georgia Tech head coach Paul Johnson said. “He’s got a good skill set. He’s a big guy. He throws the ball well. He was about eight out of 12 when he was in there, and he’s got some great weapons around him, so I’m sure they’re not going to ask him to win the game.

“He’s going to utilize the people that he’s got playing with him. I’m sure that he was highly recruited, I’m sure he’s a good player.”