In Oklahoma's past five recruiting classes, it has signed 19 offensive guards, centers and tackles, and three players who would eventually be converted into offensive linemen. Here is a look at each of those signing classes and their big men up front.
Britt Michell: Enrolled early to go through spring workouts but left the program to join the Marines. But instead, he wound up transferring to UTEP, telling the El Paso Times that he “just didn't enjoy it up there” in Norman.
Stephen Good: Started 11 games over four years. He became the starter at left guard last season after center Ben Habern was injured, forcing Gabe Ikard to move there, but lost the LG job to Adam Shead.
Ben Habern: Started 30 career games, ended his career just before his senior year because of lingering neck and back issues.
Josh Aladenoye: Redshirted, was passed on the depth chart and moved to defensive tackle, then left the team.
*Tyler Evans: Started 29 games in three seasons, but tore his ACL at the very beginning of fall camp. Because he never redshirted, he's expected to return next season.
^*Gabe Ikard: Came in as a tight end, but gained weight and moved onto the offensive line before his redshirt freshman season. He's started at both guard and center; now that Habern's career is over, Ikard is expected to remain OU's center through next season.
Tavaris Jeffries: Came in from Coahoma Community College in Mississippi, started three games during his first season but was passed on the depth chart and shifted to defensive tackle to end his career.
^*Lane Johnson: Came to OU a tight end after one year in junior college and redshirted. Switched to defensive end midway through the 2010 season, then started 12 games last season at right tackle. This year, Johnson is OU's starter at left tackle and also plays some on the right side.
Jeff Vinson: Came to OU via Lackawanna Community College in Pennsylvania, but didn't play during his one year at OU, got hurt and left the program.
*Bronson Irwin: Was a backup for his first two seasons on campus before moving into the starting lineup this season at guard after Tyler Evans' injury. Impressed coaches through the summer and has earned praise in his first two career starts.
*Adam Shead: Entered the starting lineup as a redshirt freshman last season after Ben Habern's injury caused shifting on the line. After Habern decided to end his career during the preseason, Shead moved back into the lineup.
*Tyrus Thompson: Redshirted as a freshman and saw action as a backup in five games last season. Lost preseason competition to Lane Johnson for left tackle start, but seems to have a bright future.
*Daryl Williams: Redshirted, then appeared in nine games during freshman season last year. The sophomore is currently OU's starter at right tackle.
*Austin Woods: Became deep snapper for place kicks as a true freshman, and the junior still holds the position. Was diagnosed with Hodgkin lymphoma during the last offseason and is almost finished with chemotherapy treatments. Provides depth at both center and guard positions.
Dylan Dismuke: Duncan native redshirted as a freshman, then suffered a catastrophic knee injury during bowl practices last December. Was forced to give up the game and is now on medical hardship.
*Derek Farniok: Farniok is a huge tackle (6-foot-9, 319 pounds), but the redshirt freshman is still a work in progress. He's backing up Williams at right tackle.
^*Nathan Hughes: Four-star defensive end prospect redshirted as a freshman and was moved to offensive line during fall camp.
*Nila Kasitati: Redshirted as a freshman but has gotten some playing time this season as a reserve guard. Kasitati had surgery for a heart condition during the preseason, but he is apparently fine now and seems to have a bright future.
*Ty Darlington: Among the most praised members of this year's true freshman class, Darlington got his first shot at playing time in last week's rout of Florida A&M. He's currently listed as Gabe Ikard's backup at center.
*Kyle Marrs: Currently a tackle, but could move inside to guard if needed. Likely redshirting this season.
John Michael McGee: Big, talented guard only lasted a few fall practices before deciding he didn't want to play football anymore.
Will Latu: Junior-college transfer tackle couldn't get academically qualified in time, and is now at Arkansas State.
* — Still on the OU roster
^ — Began OU careers in another position