I vote OLINE specifically inside upgrades.
I get the love for an edge but first priority should always be to protect your expensive QB and open holes. Best way to stop opposing offenses is to keep them off the field.

This Defense is suffering not just because of a lack of pass rush, but also because a lack of coverage guys. They have to play off coverage allowing teams to get that ball out in 2 seconds hard for any pass rush to get there.