What We've Learned About Every Positional Unit so Far in Packers' Preseason

The Packers have finished two preseason games in addition to a couple weeks of training camp.

While there is still much action to be seen and plays to be made, we've already learned a lot about each of Green Bay's positional units so far this preseason.

Each unit is unique and operates in a different way than the others, so it's only fair that we take it position-by-position for a breakdown of what we've learned this preseason.

There Are Still Questions Behind Aaron Rodgers at Quarterback

You know what you're going to get with Aaron Rodgers. You don't know what you're going to get if he goes down.

Graham Harrell was rather unimpressive in Green Bay's second preseason game against the Browns, and B.J. Coleman is experiencing the ups and downs that comes with the tag of being a developmental quarterback.

How Ted Thompson will solve the uncertainty behind Rodgers is anyone's guess.

The Running Backs Are Perhaps the Most Confusing Group on the Team

James Starks was set to be Green Bay's lead back this season. Then he coughed up the ball in his first preseason game and got turf toe, a lingering injury that could affect him for the entire season.

Also injured are Brandon Saine and UDFA Du'ane Bennett, leaving Alex Green and UDFA Marc Tyler as the only running backs available to play in the Packers' second preseason game.

The Packers signed Cedric Benson, who has yet to suit up for Green Bay in a game.

The backs on this roster all have different skill-sets, making it difficult to predict how this group will look on opening day.

The Wide Receivers Are as Strong as Ever

This unit is so strong that the Packers are going to have to keep a sixth receiver.

The Packers have the best wide receiver depth out of any team in the NFL, with Greg Jennings and Jordy Nelson as the starters.

Behind them are a James Jones, Randall Cobb, Donald Driver and one other receiver as of yet to be named.

Any quarterback would be lucky to throw to this group of receivers.

The Tight Ends Have Been Decimated by Injury

Jermichael Finley, Tom Crabtree and Ryan Taylor have all missed time due to injury this preseason.

That's three of the Packers' top four receivers and four of the top five, if you include Andrew Quarless, who'll begin the season on the PUP list.

While the injuries are concerning, there's a silver lining to it all.

D.J. Williams has stepped up and put on an impressive show in training camp.

The Starting Offensive Line Is Set, but the Depth Is Suspect at Best

Marshall Newhouse, T.J. Lang, Jeff Saturday, Josh Sitton and Bryan Bulaga.

That is your Green Bay offensive line from left to right. It looks pretty good on paper, doesn't it?

Now behind those five, there are a group of players fighting for three, maybe four, roster spots.

Who will get those roster spots is unclear, as no one in particular has stepped up.

Evan Dietrich-Smith figures to get a roster spot because he can play guard or center, but the other roster spots are very much up for grabs.

The Defensive Line Is Deep and Much Improved from Last Year

By drafting Jerel Worthy and Mike Daniels during the 2012 NFL Draft and signing free agents like Daniel Muir, Philip Merling and Anthony Hargrove, the front office made it clear that they weren't satisfied with the play along the defensive line last season.

B.J. Raji's effectiveness dropped off last season as a result of what the coaching staff believes to be over-usage, so the Packers needed to add some players who are capable of spelling him frequently.

Worthy figures to claim a starting job at some point in the season, while Mike Daniels has also impressed early.

Muir and Hargrove are energetic, but Hargrove's chances of making the roster are severely hampered by his impending suspension.

Whatever the depth chart may look like, this group boasts much better depth and talent than last year's group.

With Desmond Bishop Out, It's the ILBs and Not the OLBs That Need to Step Up

Sure, A.J. Hawk has always been a questionable player, but Packer fans came into the preseason thinking it was rookie OLB Nick Perry that was the biggest question mark.

With Desmond Bishop's potentially season-ending injury, it's now the inside linebackers, and not the outside linebackers, that the Packers need to be worried about.

While D.J. Smith is a solid player and stud run defender, he isn't on the level that Bishop is as an interior blitzer. Couple that with Hawk's suspect play and you might have a few questions.

Rookie UDFA Dezman Moses has impressed at OLB and the Packers have multiple players who can play both inside and out, so the depth there shouldn't be a problem.

Besides Tramon Williams, Nothing Is Set in the Base Defense at Cornerback

One of the most important things for the Packers' pass defense is the health of Tramon Williams.

So far it's looks as if he's healthy.

A week ago, it seemed as though Davon House was going to solidify a starting cornerback job in the base defense, but then he got injured.

Depending on how soon he'll be able to come back, this leaves the No.2 cornerback job up for grabs, with Casey Hayward and Jarrett Bush as the most viable contenders.

Hayward has impressed early, so don't be surprised if he gets the nod early in the season if House doesn't come back in time to win his job back.

Sam Shields seems to have dropped out of favor while second-year pro Brandian Ross has shown improvement.

Charles Woodson and Several Young Players Need to Step Up at Strong Safety

Woodson has always seen snaps at safety but figures to line up there a lot more often this season.

When he's not in, former UDFA M.D. Jennings figures to see time there, although he hasn't exactly been on fire through two preseason games.

Jerron McMillian has had a decent preseason, but it's evident that he's raw and will be best served as a backup and core special teamer.

Morgan Burnett is locked in as the team's free safety. McCarthy expects a Pro Bowl appearance out of him, and that certainly isn't out of the question given his immense talent.

The Specialists Are Set

Mason Crosby, Tim Masthay and Brett Goode have no competition whatsoever. This group is set.