Chris Godwin scored a touchdown to help propel the Buccaneers to victory in the first round of the playoffs.
Walker has made 22 consecutive starts at left tackle for the Nittany Lions.
While he's listed as a safety, Hartlaub has served as a special teams ace for the Nittany Lions over the past few seasons.
Analysts expect a bounce-back season for Penn State football in 2021.
Yurcich has 22 years of coaching experience under his belt, including six seasons of offensive domination at Oklahoma State.
The safety recorded 57 tackles and an interception in a breakout senior season.