A pass interference call, Penn State's seventh penalty of the night, kickstarted Iowa's next drive, and Wadley broke free for his second explosive play of the half on a 35-yard touchdown run for a 19-15 lead with 1:42 to go.
Barkley finished with 211 yards on 28 carries (7.5 YPC) and 305 total yards.
Penn State grabbed the first two point lead of the fourth set at 10-8 on a kill from Lee.
The Hawkeyes winning this game would be like Iowa State making a bowl game, so, not very likely. Barkley leads Penn State in receiving yards (241), with 85 of those coming on his touchdown catch against Georgia State, the team's longest pass play at Beaver Stadium. Will Iowa's defense put consistent pressure on big-play machine McSorley and win the turnover battle? Iowa ranks 12th among Big Ten teams with 3.8 yards a rush, a troubling trend given the fact that it was outgained 359-30 on the ground in last year's 41-14 loss at Penn State.
Offensively, the Hawkeyes have to do something outside the gift Penn State gave them at the end of the half.
Penn State had already opened a 3-0 lead by then, marching 66 yards on 10 plays to the Iowa 1-yard line before settling for a 19-yard field goal by Davis with 1:01 left in the quarter.
Last week, Penn State caught three interceptions and forced three fumbles defensively.
Because this time, the Nittany Lions ripped off 13 chunk plays, runs of 12 yards or more and pass plays of better than 15.
Nate Stanley is not a star quarterback, but he's a good enough game manager to keep drives alive, keep PSU's defense on the field and the Lions' offense on the sideline.
Life on and off the field is going pretty well for the guy who took a chance on going to Penn State.
Both the defense and offense will have to be better in conference play than a year ago if Iowa wishes to improve on last season's 2-9 Big Ten record.
Five things to look for as Penn State kicks off the Big Ten schedule in a very hard environment tonight at Iowa's Kinnick Stadium. Iowa is allowing just 19.3 points and 335 yards per game this season.
The $95 price is the highest ever for an Iowa home game. I don't think Penn State will be able to move the ball as easily as it has.
Those two games could decide who gets a spot in the Big Ten championship game, as well as one invitation to the national semifinals. McGuire also contributes to College Football Talk and The Comeback as well as hosts the No 2-Minute Warning Podcast. That can only give you hope, but for now, it's looking like a Penn State win fair and square. He knows the difference in those night games at Kinnick, and it's the simplest explanation possible. The Hawkeyes will need something to hit that extra gear, but Ferentz expects the same "electric" atmosphere he's used to at night.