Agree. Also, both Biegel, Ryan, Martinez were R4 picks, so you're unlikely to be getting All Pro level play. Modern offenses dictate that you don't use thumpers much except for early downs or goal line stands, but you still need one or two.
I don't think Ryan is a stud, but I don't think he's garbage either.
Martinez had a good year, with the exception of a couple of games and the occasional brain freeze with pass coverage. They are both solid players.
Jury is out on Biegel; this was basically a redshirt season for him and Montravious Adams, who might develop as a DL pass rusher.
With the higher picks GB needs perimeter players (pass rush, CBs) IMO, unless there is an absolute beast at ILB who can play all 4 downs available. Considering teams are playing safeties as "moneybackers" now I don't think ILB is a highly valued position (like OG).
I really think another solid corner and a vastly improved pass rush is enough to put them in the top 12-15 on defense, which with a healthy Rodgers is probably enough to make them a strong SB contender.