A few notes from Packers Twitter:
-Sounds like Gunter is doing his darndest not to make this team.
-Randall seems to be having a better day-- according to Michael Cohen, he has always wanted to play the slot.
-Cobb really wants to return punts.
-McCarthy has noted that Trevor Davis, who is in the mix as the PR and KR guy, has gotten bigger and stronger in the offseason.
On Cobb, I think the coaching staff should let him get in the PR mix. He can share the responsibilities with Davis. With both Bennett and Kendricks in house, the Packers may want to run more 12 personnel this year than they have in the past. That would mean fewer snaps for Cobb in the slot. Letting him return some punts would counteract that loss of snaps/touches.
If Davis distinguishes himself as the leader option in the return game, you can sew up his roster spot.