It’s not an either/or proposition.
BOTH position groups must be addressed and ‘fixed’. Period. If not, Rams simply won’t be competitive.
And let’s don’t forget about the screaming need at edge.
There is some good news here, though.
Only 2 players needed for necessary OL upgrade.
Only 1 player needed for necessary Edge upgrade (unless Rams offload Floyd, too).
Probably only 1 player needed at CB (unless Rams trade Ramsey).
And Rams have all of FA, trade season, and a draft deep at needed positions with which to fill these needs. So, it seems doable IF Snead makes smart decisions.