The ball was placed at the 1-yard line for yet another conversion attempt.
He called the wrong play on a 2-point conversion attempt last week.
Michigan chose to go for two, but the conversion attempt failed.
The play failed earlier this season on a 2-point conversion attempt against Wisconsin.
A single point scored in a conversion attempt by making what would be a field goal during general play.
For the second time in a row, a 2-point conversion attempt failed.
Last week, the 49ers lost when a 2-point conversion attempt against Seattle failed.
The Irish missed a 2-point conversion attempt with 31 seconds left.
He could even afford to make a right mess of the conversion attempt.
Scott then took the conversion attempt and successfully turned his try into a goal.