I'm expecting three of these players will make the 53-man roster, so the competition should be fierce. Guy was stuck on injured reserve last season, and now (assuming he'll return healthy), he has to fight for a spot on the 53-man roster, though he still may be eligible for the practice squad. Hargrove and Neal are staring down suspensions. While Hargrove may have no chance of changing the commissioner's mind over his participation in the pay-for-performance scheme while he was with the Saints, Neal might have his suspension lifted on appeal because his situation is similar to Andre Brown's. Based on what I read during the open OTAs, Worthy might be considered the top defensive end because of his ability as a pass rusher. Merling, Wilson, and Wynn are going to have to give the team a reason to keep them this preseason, but they all have potential.
Here are the defensive tackles (plus Jones who's listed as a "DL"):
Three-and-three: the Packers should keep three defensive ends and three defensive tackles. Jones spent 2011 on the practice squad, and that's his only hope of staying with the team again in 2012. Muir only played in 4 games in 2011 before the Colts released him, so he'll have to prove that he still belongs in the NFL, which I don't expect he'll be able to do. That could make it easy to keep Pickett, Raji, and 4th round pick Daniels (assuming his lingering shoulder injury doesn't land him on the I.R.).
The wild card is former Packer Johnny Jolly. Reading between the lines on a recent comment from team president Mark Murphy, who mentioned that he just wants Jolly to "lead a productive life" and notes that Jolly's been out of football for a couple years, it looks like the Packers aren't including Jolly into their plans. He might have some football left to play, but it seems they don't want to take back a player who could easily provide more headaches.
Overall competition level: high at defensive end, low at defensive tackle. Other than Pickett, Raji, and Worthy (Daniels will stay either on the active roster or I.R.), the other three positions could be made up of any combination of these players. These two positions will be ones to watch this preseason.