I don't see the Packers playing two ILBs every down and the Packers' dline has not shown the ability to keep the second level clean. I'm not trying to imply that Queen will be a bad pick, I just don't think the defensive personnel/scheme for the current Packers are going to allow him to remain protected against the run. Queen is excellent in coverage and plays more like a big safety than a true ILB and I just don't think that's the kind of ILB help the Packers need.
Baun, after the Senior Bowl, stated the he wanted to move to off-ball linebacker, and he's shown the skills necessary to do so in college.
They would be able to use two true linebackers far more often if one of them was a capable player in coverage. The reason they've run so much dime, with a safety playing next to Martinez, is because none of their linebackers have ability to hold up in coverage.
You can see this in defenses like SF. Fred Warner can handle coverage responsibilities, so he and Greenlaw were out there together about 70% of the time. Anthony Barr and Eric Kendricks both played 85%+ of the snaps, again because Kendricks can handle himself in coverage. The Titans are another example-- Evans and Brown played a lot of snaps next to each other because Brown is capable in coverage.
Certainly the Packers' scheme and defensive line doesn't involve a lot of 2 gapping interior linemen who just occupy blocks, but over the second half (with a healthy Kenny Clark), the iDL generally did a good job protecting the second level. It's not a coincidence that Martinez's play saw an uptick over the second half.
Generally, I think FA will dictate what type of LB the Packers target. Because they currently need both a cover player AND someone who can handle heavier work in the run game. If they sign the former, then they can try to draft the latter or vice versa.
I am not arguing that Baun can't play ILB, or wouldn't be a good pick. I'm just explaining that he isn't in that list of Zierlein's off-ball linebackers because he wrote him up as an edge, which is because Baun basically was an edge at Wisconsin.