I think it will be serviceable if Auburn transfer J. Johnson makes it here as planned. That gives you Johnson and Sami at the NT, an established playmaker (Mustafa) at one end, and a solid developing talent (Lang) on the other side. Not sure we won’t be playing more 4 man fronts, though.
Depth is definitely the issue. A few injuries and things on the Dline could become bad in a hurry.
Reinforcements should help a lot in the front seven. Depth will be an issue, but I think it can be serviceable as you said. We at least have known answers at several positions there.
The secondary just seems like a big unknown. If Chris Miller cannot stay healthy (which is a reasonable concern right now), who is going to see the bulk of work at outside corner? Who are the starting safeties?