Rookie Max Hall has been ineffective in three starts, and Whisenhunt is considering replacing him with Derek Anderson, who started the first four games.
The coach said Monday he had not made a decision and wanted his staff to go over video of the game with the players before a decision was made.
In his last two games, Hall has completed 12 of 32 passes for 107 yards, three interceptions and only one touchdown. He admitted Monday he's never seen such complicated defenses.
"We're not getting what we need out of the quarterback position right now," Whisenhunt said. "Obviously, you can't have two turnovers that lead to touchdowns and two other interceptions. We're going to take a hard look at it."
The problem is the coaches have been looking hard at the position, but they have few options. A free agent available at this time of year isn't going to help. The trade deadline has passed.
The only thing the Cardinals haven't tried is starting rookie John Skelton, the third quarterback. But he's behind Hall for a reason.
With a game in Minnesota this week, Whisenhunt likely will go back to Anderson, a veteran who has experience playing in noisy places.
Schofield played on special teams.
"The game speed is definitely a lot different than practice," said Schofield, a fourth-round pick from Wisconsin. "On my first play, I kind of got a little beat on a kickoff return, and after that, I'm like, 'OK, I'm ready to go.' I got my speed up, and I think I did some good things out there."
"I'm not heartbroken," safety Kerry Rhodes said.
Cornerback Dominique Rodgers-Cromartie was looking forward to the matchup. "That's like playing Andre Johnson and Larry Fitzgerald. As a corner, shoot, you are always looking at that matchup. I like matchups like that; it brings the best out of you as a defender."