After listening to this I am now concerned about our O-Line. Not confident the receivers have made the necessary progress and Fleming will not be any kind of difference maker. Also we are very very thin at both LB and DE. Not a positive outlook at all.
OL has been a question mark since we sent 3 guys to the NFL. We have multiple guys with starts under their belt returning (Sal, Nelson, Vega, Shelton), but only 2 of them are perhaps pegged to start. We seemingly have depth, something prior to last year we seemed to never have. We just don't have a sure thing.
WR is going to be a concern until they do something in live action. I've seen one article where one of our safeties (Reed or Winston i think) is quoted as saying "the WRs got the best of us today". Fleming will probably be Fleming if he's healthy. He's never had a 1st round type of year, but he's never been more than the #3 WR at OSU.
DE was thin with Lyons. He got time last year, which was very good, but returning experience was low regardless. Fisher being hurt doesn't help, but we are going to have to rely on 2 or 3 new faces to replace depth. DDS and Vanover should be really good players and Carter adds some pass rush excitement, but our depth is still inexperienced.
LB is about the same. King is really good and we have Elsdon to spell him (but that hasn't inspired much yet to be fair). Rojas has less experience than Carter did coming into year 2, but he should be a tackling machine. Can he be the havoc maker on forced fumbles and picks that Carter was as a pass rusher?
De Luca has experience, but he still needs to get to another level. Behind them, it's a lot of unknown. Keys had no major contributions previous but it's still a hit to depth. Wylie being hurt sucks, but he's less experienced than Fisher was at DE and really hasn't shown much yet (aka his injury hurts depth but is not quantifiable).
Allen being a LB coach could be really good for this unit. Our 3rd string guys are probably higher rated prospects than he's used to working with at IU.
Reloading means unknowns stepping in and not missing a beat or playing better than their predecessors. You aren't going to send a bunch to the NFL and return 17 pure starters. You can't bring in 25 recruits and fill in every gap with studs in the portal.