Secondary, but thats only because we have a new coach and because change absolutely has to happen.
A lot of young guys stepping up, so the real answer will depend on which Grant steps up as a mentor; Curtis or Doran. Based on what we've read so far, I voted LBs with a slight edge.
Secondary is primary for me.
"YOLO" = I'm about to do something extremely ignorant/stupid & I need an excuse to do it.
I'm more worried about Shazier being gone than the 3 secondary guys combined (because Vonn Bell + Powell + Conley seem like they will be just fine).
There's more depth in the secondary as well.
Judging on how Reeves played last year, it's hard to be confident in our secondary if no one can beat him out. Maybe he has improved tremendously or the new scheme is better suited for him, but watching Iowa's TE run away from still haunts me. Also, he didn't exactly redeem himself in the Clemson game.
I think the LBers were OK last year but the secondary was terrible. The secondary can only improve whereas the LBers may remain OK.