Would appear the offense has the most room TO improve. They certainly weren't a liability, but turnovers were high over the second half of the regular season, we didn't really have a consistent second-receiver after JSN, running game ran hot and cold, etc.
I'm not sure any of that is necessarily solved, but there's reason to be optimistic that Darnold's postseason performance will provide him more confidence, and further development from especially Horton and Arroyo will help. I wouldn't expect rookie Price to be an upgrade over Walker, and we don't know how Charbs will respond coming off injury, but if everything else is clicking it should still be good. New coaching is a wild card.
Like usual, probably depends on who stays healthy. We got lucky with that last season.