if this is an honest question, the answers are not really, yes, and i think we'll be ok.
linebackers - really shaky. anthony hines is more pedigree than anything at this point, but we have to hope he's a contributor. i like buddy johnson, but not sure he's a guy that can play consistently if he's not in space. one of ke'shun brown and andre white are going to have to be ready to go (probably white) and you pray somebody (hansford, kiante mccoy, grad transfer) rises up to take some snaps.
dline - has a chance to be really good by mid-season, needs to get there early. i think bobby brown moves to dt because leal will be better day 1, and between him, diallo, madubuike, and jayden peevy we'll be just fine, even if derick hunter (who i love) and adarious jones take a while to get ready. the weak spot is a guy that can bring pressure, but hoping someone between tyree johnson, clemons, or leal can provide that. max wright also should be back to full health and i'm curious if he gives 10-15 good snaps a game.
at corner, not sure how it can be worse - always dangerous to hope too much on a juco, but elijah blades' film is awesome, and another year in the system should give us some more options at the boundary corner. (renfro, elam, fuller and chattman all have their good and bad - i fear oliver is broken forever). we also should get better safety play year 2 - elko demands a ton, and i wouldn't be surprised if brian williams ends up playing a lot of snaps at some point.
i said on here earlier i think we're a top 25 s&p+ defense next year (after 36 this year) - nothing spectacular, but if the linebackers hold up (big if) we should be ok.