I think the biggest need for the Chicago OL in 2013 is center.  Garza isn't quick enough to get off of double teams and/or reach the second level.  He gets stalemated by Raji/Williams/Suh/Fairley and it messes up the run/pass game.  If Chicago wants to address the Center position in round two that's fine.
My dream scenario is Chicago obtaining at least one starting OL and two more for to compete in Free Agency, along with a TE.  With Austin/Mathieu in round one and two, then OL/LB/etc.
For those that aren't educated on these players
Tavon Austin:https://www.youtube.com/watch?v=xdxtZn9Z-Jc
		
		
	 
Starting OL= checkStarting TE= check
List of things to do:
-Sign Brandon Moore, so at least one of the OG positions is solid in 2013.
-Sign one vet LB: Daryl Smith, Justin Durant, Karlos Dansby
-Possibly sign Antoine Winfield to be out slot CB(they ignore my round 4 ideas)
Draft
1st round:
1) Draft Jonathan Cooper G UNC if available
-Why? Because we have a huge need at Guard.  Cooper has elite feet and will be a good player for years.
2) Trade down
-Why? Too many needs.
3) Draft Tavon Austin WR WVU
-Why? Austin is too big of a playmaker to ignore.  He will be our returner/slot guy/can go deep/reverses.  But most of all, take attention away from Marshall.
4) Draft Keenan Allen WR Cal
Why? He played in the slot some at Cal and he could do that in Chicago.  I can't put my finger on if Emery likes short or tall guys.  Right now i'm leaning tall=traded for Marshall(6-4), drafted Jeffery(6-3), Signed Martellus Bennett(6-6).  Allen(6-3) has great feet for his size and he can create mismatch problems on the inside just like Marquess Colston with the Saints.
2nd round:
1) Draft Arthur Brown LB Kansas State
-Why?  Brown has good speed, is all over the place, and good in coverage.  In today's NFL if a LB can't cover, why have him(see Ray Lewis in the super bowl, Urlacher lately, and other LBs who are slow now).
2) Draft Barrett Jones C Alabama
-Why? Because he's versatile...will he be available.  Who knows.
3) Draft Travis Frederick C Wisconsin
-Why? Roberto Garza isn't getting it done, despite his leadership skills.
4) Draft Kevin Minter MLB LSU
-Why? He's a solid all around player, but not super athletic.
4th round:
1) Tyrann Mathieu CB LSU
-Why? Because he will be an elite slot CB in the NFL and he makes plays.