I posted a few thoughts in my own thread, but I don't know what to make of the offensive line. It's great that they are all coming back, but there was no "nasty" there. It's unusual that we don't trust anyone to come in to be the 6th lineman outside of the top 6 guys on the roster. I listen to all the Gopher football info I can (podcasts etc) and I haven't heard much at all about the offensive lineman behind the top 6. I head one thing months back from Ryan Burns that the staff thinks they hit on Gudet and Boe, but that's literally all I can remember.
On the Dline, no Carter Coughlin will be an issue and Winston DeLattiboudere was considered to be a big time leader. On the interior Sam Renner came out of nowhere to have a really nice Senior season. There is still Schad, Teague, and Dew-Treadway on the inside and you'd hope that one of the highly ranked 2019 kids will emerge as well.
Linebacker seems like the biggest possible regression point to me. It didn't seem like Barber had a great year, but Martin was really good when healthy and the other options behind those two were noticeable weak spots. Obviously guys like Sori-Marin and Oliver can improve but what happened to Thomas Rush? He flashed as a Freshman, but seemed to really struggle this year in his limited playing time. It seems like the linebacker spot is where we could really use another grad transfer that can play in the mold of a St Juste or Dew-Treadway.
One other thing I am slightly concerned about is how few Fleck high school recruits have impacted our defense so far. He's hit it out of the park on transfers like Williamson, OJ Smith (for a few games at least), Dew-Treadway, and St. Juste, but there hasn't been a Bateman or Morgan (or arguably even Faalele or CAB) type impact from any of the defensive recruits yet (Howden probably biggest impact and he walked on initially). That will have to change in a big way for next year not to be a step back.