To me, it ALL depends on the QB. I personally think that Jantz starts from Day 1. He is supposedly a quick learner, is accurate and can run too. We'll see.
QB: I think that it will be better. AA had some really good games, but when he was dinged (half the season), he was a shell of his former self. This is the big question mark.
RB: Equal. I loved ARob. Shontrelle did seem to hit the hole faster. They'll definitely be deeper, but lose some of the knowledge of the system and pass protection that ARob showed.
WR: Better. I think that they will be faster and more elusive overall. They'll need Lenz to step up and make big catches. IMO Jarvis West will make a big impact.
TE: Worse. They'll miss Colin Franklin making the big catch. I don't think that the JUCO Brun can just step in and replicate that. They should be stronger at the point of attach with Hammerschmidt.
OL: Even. I think that KO will move inside and be a force. Counting on improvement from Burris and either Farniok or Tautolo to step up at Center.
DE: Better. Nelson with a year in practice will be a big upgrade over Parker. Lat is back, Neal is back. They'll need a 4th DE to step up, but I believe that the pass rush from this spot will be a lot better and the run D will be equal if not better.
DT/NG: The same. Rump and McDonough are back. Laing played a lot of snaps. They'll need one more guy to join the rotation. They lose Bailey Johnson, but he was hurt half the year anyway. They should be bigger and stronger.
LB: Better. All three starters return and have a year under their belts with a couple of redshirts joining them, so they won't be forced to play every snap like they did last year. My one concern is who comes in at SAM in the nickel.
CB: Better. LJ and Reeves are both back. Thomas has gotten good reports while redshirting and I think that he'll make a nice backup.
S: Worse...although not as much worse as people think at first glance. My opinion is that Benton gets one of the spots here. He's played a ton of ball for ISU and has Safety skills. I think that it makes sense to get him on the field full time at a position where they've lost their top 3 guys. The other spot would go to Washington, Brooks or Givens (who redshirted out of JUCO).
K/P: Better. Both are back. They'll be better.
Coverage: Better. ISU took a big step back last year losing some major ST contributors to graduation (Zitek, Schmidgall) and starting spots (Knott, Klein, Reeves). They have a bunch of athletic redshirts (Morgan, Bennett, Mattison, Young, Givens, Gary) that should fill that void a little better. I don't think that coverage will be as much of an issue.
Returns: Better. Lots of guys coming in (Horne, Lampkin, Nealy, Ecby, Bundrage, Richardson) and coming off RS (Young, West) with PR/KR experience.