I've read and heard some PSU media and fans saying how PSU will have to replace a good bit of production at DT from 2022, I guess referring to Mustipher. But Mustipher was not nearly the same player in 2022 that he was pre-Iowa 2021.
And it's the nature of college football for young players to progresss, get stronger, with the best DT's usually proving themselves and exceling as upper classmen, which is why I am cautiously optimistic that players like Izzard, Ellis, Beamon, Van den berg, and Durant will be a better group than what they showed in 2022. And when we talk about the 2022 UM game we have to recognize that the LB group wasn't up to the task that day either. Carter had not yet taken over at Will, Jacobs was playing snap out of position at Will, DeLuka was not nearly the player at Sam that Jacobs is, and I saw Elsdon on the ground watching the UM RB's fly by on too many plays. King will be more stout vs the run, hopefully Elsdon is better although I'm not sold on him, and Carter will be a top 5 in the country LB along with Jacobs being a top B10 LB, which should show up in the run defense. Additionally, although Tarburton was decent against the run, I like the now more physically mature DE trio of Robinson, Isaac and DDS, along with Vanover and Fisher, to hold up better against the run than the 2022 DE group.
And another factor should be the continued improvement of the PSU running game to keep the PSU defense off the field for longer stretches.
The PSU defense has to prove it on the field but I see plenty of room for optimism. The OL is deeper than the DT position and I believe can withstand an injury better. An injury at DT would likely cause Artis to be needed for 10-15 snaps per game and he's an unknown to us, although the staff has commented that he has come a long way.