I'm gonna break it down as unbiasedly as possible
QB: The spot is just overall better, we all have the general feeling Jeremy is better than Nick, and some of us felt he was better last year. Sean White is an accurate white QB with some mobility, and Tyler Queen is a capable third string. We have a former JuCo QB that now plays receiver if it gets that bad.
RB/HB/TE: We lose Grant and CAP, but Jovon and Roc T. are HUGE improvements over those two. Jovon is a bruiser type with very good speed and Roc has put some weight on to go along with his home run speed this offseason. We lose Uzomah (a great TE) and Fulse, but they sucked dikk at blocking, and we barely even used them (because that would've required Nick to read them being open). We got the former #1 FB in the nation blocking at FB now and a good hybrid TE/FB in Kamryn Pettaway
WR: We lose Sammie, Quan Bray, and I believe that's it here. We got deeper at this position, and I think the coaches are really comfortable with this spot going forward. I'll spare you another paragraph, but the guys we lost here have very capable looking replacements.
OL: I believe all we lost here was our center Dismukes, and we return our former starting RG Alex Kozan who was an all American in 2013 then got hurt before 2014 started. With him out, and no real FB, the running game RARELY clicked. We have a transfer Center from OM's godly 2013 class that is supposed to be the truth from practice reports.
TL;DR, a lot of our expectations ride on potential, but it's potential that looks very good and Malzahn does very well with very good potential
. P.S none of the guys we lost had as big an impact as the guys (the closest SEC projected winners) Alabama lost this offseason.