Levis entered the transfer portal just last week after spending his redshirt sophomore season primarily as Sean Clifford's backup.
The Nittany Lions' bye week will now be on October 16 and their date with Ohio State has moved up to October 30, among a few other changes.
Bowen served as a graduate assistant for the Nittany Lions in 2014 and has been on the offensive coaching staff since 2018.
Returning stars like PJ Mustipher and Jesse Luketa should help anchor a Penn State defense with much to prove.
Over the course of his FBS career, Yurcich's offenses have averaged 6.49 yards per play and 14.03 yards per completion.
"Everybody is so good. You think I really want to go on the road and play Wisconsin on Tuesday? We're gonna, it's the next one."