The redshirt freshman spent last season behind Drew Allar and Beau Pribula.
"We try to keep things simple so we can play fast."
Allen's development as a running back has changed under new offensive coordinator Andy Kotelnicki.
"The whole model of my agency is to reach a peak of fashion or get close to it."
The Nittany Lions are also set to face Nevada and Villanova in the same season.
Scott previously won a Super Bowl with the Los Angeles Rams.