"To be honest, it doesn't really affect our room," he said. "We're going to coach the guys that are here and push them to be the best they can possibly be, and I think our players understand that."
Betts' growth: Among the young receivers taking advantage of playing time is true freshman Zavier Betts, who made his first career start Friday at Iowa.
Lubick said the 6-2, 200-pound Bellevue West graduate is gradually getting better.
"I do think when we got into some game action and got some confidence and had a little success in the Penn State game, I think that gave him more confidence, and just knowing what it takes to play at this level," Lubick said of Betts, who scored on a 45-yard fly sweep against Penn State. "He gets better every day in practice."
Betts has six catches for 95 yards (15.8 per catch) this season.
Daniels stepping up: Statistically, Damion Daniels had his best game as a Husker, finishing with a career-best five tackles Friday at Iowa. The 6-3, 335-pound junior defensive tackle has 10 tackles over the past three games and is seeing his reps count increase.
"I thought he played a really good football game (at Iowa)," Chinander said. "He was physical, he did a nice job in the middle all day for us."
Daniels' contributions have been key for a Husker defensive line that had to work in mostly new players this season after the departures of Khalil and Carlos Davis and Darrion Daniels, Damion's older brother.
Daniels played 44 snaps against the Hawkeyes, according to Pro Football Focus, 21 more than his previous season high.
"He's getting to where he can play more plays in a row, which is what he needed to do," Chinander said.
Allen "good to go": Nebraska junior tight end Austin Allen took quite a hit during the final drive of Friday's game at Iowa, getting slammed to the turf in the process.
Lubick said Allen is "good to go" and had a great practice Tuesday.
That's a good sign for the Huskers because Allen has emerged as one of their primary pass catchers. The Aurora graduate is second on the team in receptions (14) and second in receiving yards (169), and he hauled in an acrobatic catch during the first half against the Hawkeyes that moved the chains.
"The reason that he makes big plays in the games is because he makes them in practice and it carries over," Lubick said. "I know quarterbacks like throwing to him because he has a big catch radius."
Is that motivating players to play with greater effort this week knowing this could be their final regular-season game?
"I think if we've got to tell that this might be it so we need our best effort, we've probably got the wrong guys," Chinander said. "It should be your best effort every time you go out there."
Chinander said his focus is on Purdue and not what's going on at Minnesota.
"But our guys are just ready to play and they've been wanting to play every game," he added. "It hasn't bounced our way some of the times, but these kids wanted to play football at the beginning of the year, and Coach Frost obviously fought to get them to play football."
— Clark Grell
Photos: Iowa hangs on to beat Nebraska to claim the Heroes Trophy for sixth straight year