Lane Johnson

NEW ORLEANS, LA - SEPTEMBER 09: Interim head coach Aaron Kromer of the New Orleans Saints reacts during the game against the Washington Redskins during the season opener at Mercedes-Benz Superdome on September 9, 2012 in New Orleans, Louisiana. The Redskins defeated the Saints 40-32. (Photo by Chris Graythen/Getty Images)

CENTER Roberto Garza: The leader of the offensive line, Garza had his own ups and downs. He has one year left on a three-year contract. Overall: -5.6; Pass: 1.9; Run: -8.2

TACKLE J’Marcus Webb: Webb started off the year on the hot seat, but started all 16 games as the struggles of other offensive linemen gained more attention. Overall: -0.8; Pass: 1.4; Run: -0.9

TACKLE Gabe Carimi: Never 100 percent healthy after missing most of the 2011 season after dislocating his kneecap and having surgery. Bears won’t give up on him yet. Excelled at run-blocking and played well at guard. Overall: -14.3; Pass -20.3; Run: 9.1

GUARD Lance Louis: Louis was the Bears’ most consistent offensive lineman, but he tore his ACL on Nov. 25. He’s a free agent this offseason. Overall: -1.8; Pass: 5.7; Run: -8.0

GUARD Chilo Rachal (62): He started 10 games before abruptly leaving the team after the loss against the 49ers after being demoted. Rachal is a free agent. Overall: -12.1; Pass: -1.0

GUARD Chris Spencer: Spencer became a backup after starting the first two games at left guard, then played again after injuries devastated the line. He’s a free agent. Overall: -4.0; Pass: -9.2; Run: 4.2

TACKLE Jonathan Scott: Emery spoke highly of Scott, who is a free agent, during his year-end news conference. Scott did bring some stability to the line after taking over for Gabe Carimi at right tackle. Overall: -8.1; Pass: -7.3 Run: -2.0