Michael C. Wright of ESPN Chicago passed along the first unofficial depth chart of the 2012 NFL season on Monday. The lineup featured a few surprises, including at left tackle where OT J'Marcus Webb will take the starting role and OL Chris Williams, a former first-round draft pick, will start the preseason in a reserve role. Meanwhile, rookie OL James Brown, a Chicago native and undrafted free agent, assumes the third-string spot.

Here is a look at the full depth chart, courtesy of ESPN Chicago:

OFFENSE

WR: Brandon Marshall/Earl Bennett/Dane Sanzenbacher/Terriun Crump-Chris Summers

LT: J’Marcus Webb/Chris Williams/*James Brown

LG: Chris Spencer/Chilo Rachal/*A.J. Greene

C: Roberto Garza/Edwin Williams/Chris Spencer/*Nick Pieschel

RG: Lance Louis/Ricky Henry/*Nick Pieschel

RT: Gabe Carimi/Chris Williams/Cory Brandon/*Tyler Hendrickson

TE: Kellen Davis/Matt Spaeth/Kyle Adams/*Evan Rodriguez/*Brandon Venson

WR: Devin Hester/*Alshon Jeffery/Eric Weems/*Joe Anderson-*Brittan Golden/Rashied Davis

QB: Jay Cutler/Jason Campbell/Josh McCown/*Matt Blanchard

RB: Matt Forte/Michael Bush/Kahlil Bell/Armando Allen/Lorenzo Booker

FB: Tyler Clutts/Harvey Unga/Draylen Ross

DEFENSE

LE: Israel Idonije/*Shea McClellin-Corey Wootton/Thaddeus Gibson

DT: Henry Melton/Stephen Paea/Nate Collins-John McCargo

NT: Stephen Paea-Matt Toeaina/Nate Collins-Brian Price/Jordan Miller/Ronnie Cameron-DeMario Pressley

RE: Julius Peppers/Chauncey Davis-*Shea McClellin/ChetaOzougwu

WLB: Lance Briggs/Geno Hayes/J.T. Thomas/*Adrien Cole

MLB: Brian Urlacher/Dom DeCicco/Jabara Williams/*Ronnie Thornton

SLB: Nick Roach/Blake Costanzo-Patrick Trahan

LCB: Tim Jennings/Kelvin Hayden/*Isaiah Frey/Cornelius Brown-Jeremy Ware

RCB: Charles Tillman/Jonathan Wilhite/*Greg McCoy/D.J. Moore

SS: Major Wright/Craig Steltz/Anthony Walters

FS: Chris Conte/*Brandon Hardin/Trevor Colston-Jeremy Jones

SPECIAL TEAMS

K: Robbie Gould/*Ryan Quigley

KO: Robbie Gould/*Ryan Quigley

P: Adam Podlesh/*Ryan Quigley

H: Adam Podlesh/*Ryan Quigley

LS: Patrick Mannelly/Tyler Clutts

KR: Devin Hester/Eric Weems/*Greg McCoy

PR: Devin Hester/Earl Bennett-Eric Weems/*Greg McCoy

*rookie

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