Charlie Weis had made his decision on his quarterback for Saturday's game against Air Force.
Freshman Jimmy Clausen is back as the team's starter, according to Sports Information Director Brian Hardin.
Junior Evan Sharpley started the last two games.
Weis made his decision following Wednesday's practice but was not made available to the media for comment. He will discuss the decision on Thursday.
Clausen started 6 games for the Irish this season. He was replaced by Sharpley in the 2nd half of the Boston College game.
Weis said after the BC game that Clausen was banged up and that it made sense for Sharpley to take over as starter.
Earlier this week Weis declared Clausen healthy enough to start but wanted to see both quarterbacks in action at practice before making his decision.
"I don't think what you want to be doing here is each week say, well, who's going to play the best for us against Air Force, who's going to play the best for us against Duke, who's going to play the best for us against Stanford," Weis said on Tuesday before making his decision.
"I'm at the point right now where I want to win this game, and simultaneously, I want to start building some upward momentum."
The Irish are 1-8. Clausen was the starter for Notre Dame's only win this season against UCLA.
Clausen has thrown one touchdown and 5 interceptions. He has completed 81 of 141 pass attempts. Clausen has appeared in 7 games, starting 6 of them.
Sharpley has thrown 5 touchdowns and three interceptions. He has completed 77 of 140 pass attempts. Sharpley has appeared in 8 games, starting 2 of them.
In last Saturday's loss to Navy, Sharpley was 17 of 27 for 140 yards. He threw 2 touchdowns and 0 interceptions. He did have one fumble that was returned for a touchdown.