Agree that LT is the biggest question mark on offense. It looks like we have three candidates there. The transfer kid is intriguing given his size and experience, but they gotta figure out who is the best of that bunch and hope they are up to the job. Its been a minute since we had an elite LT, and I don't see that changing this year.
On defense, there are tons of question marks, but we all have a pretty good amount of faith in the coaches. Seems like Parker, especially early, will play a lot of vanilla base D and try to get his young back 7 in the right positions to succeed while expecting an experienced Dline to cause havoc. I have always felt between having an inexperienced LB corp or DL, I would rather have green LBs behind a seasoned DL than the other way. Iowa's defenses have struggled in years where the DL was not dominant. So, I think this defense will be very good to great, and get better as the year goes.