Texans owner Bob McNair hired his new head coach from Penn State, and now he might be getting one of the greatest players in Nittany Lions history.

Coach Bill O’Brien, who coached Penn State the last two seasons, will interview Mike Munchak on Friday about becoming the Texans’ offensive line coach.

Munchak played for coach Joe Paterno at Penn State from 1978-81 and interviewed for the school’s head coaching job after he was fired last week as the Tennessee Titans’ head coach.

On Thursday, O’Brien hired Ohio State assistant Mike Vrabel, who won three Super Bowl rings as a linebacker with New England, to coach the Texans’ linebackers.

O’Brien wants to have some assistants with NFL experience. Vrabel played 14 years in the NFL, including eight with the Patriots.

If he gets Munchak, a member of the Pro Football Hall of Fame, for his offensive line and Romeo Crennel as his defensive coordinator, O’Brien will have two former NFL head coaches on his staff.

If O’Brien hires Munchak, he might also get Bruce

Matthews, another former Oilers offensive lineman in the Pro Football Hall of Fame, as his assistant offensive line coach.

Munchak had a 12-year playing career with the Oilers. He was a first-round pick in 1982 and played through the 1993 season before remaining in the organization as an assistant coach and head coach.

Munchak spent 32 years with the Oilers/Tennessee Titans organization. He would replace John Benton as the Texans’ offensive line coach.

During his 17 years as an assistant with the Oilers/Titans, Munchak was considered one of the NFL’s best offensive line coaches.

In his career as a left guard, Munchak was one of the most popular and respected players in Houston’s pro football history.

Munchak helped the Oilers make the playoffs from 1987-93 during what was called the run-and-shoot era. When he retired, he became an assistant offensive line coach and then was promoted to offensive line coach before being elevated to head coach by late Titans owner Bud Adams.

Meanwhile, Vrabel is leaving the Buckeyes after coaching linebackers and the defensive line for three years. When Vrabel won his Super Bowl rings, Crennel was his defensive coordinator.

O’Brien is hoping to hire Crennel, who won five Super Bowl rings working as an assistant coach for Bill Parcells with the New York Giants and Bill Belichick with New England.

Crennel, 66, was the head coach at Cleveland and Kansas City. He was fired by the Chiefs after the 2012 season with two years left on his contract. He didn’t coach in 2013.

Crennel had left the Patriots before Belichick gave O’Brien his first NFL job.

The Texans announced this week that Bill Kollar, assistant head coach/defensive line, has been retained by O’Brien. If O’Brien can get Munchak to go with Kollar, the offensive and defensive lines will be in veteran hands.

Special-teams coordinator Bob Ligashesky is still under contract, but his status hasn’t been determined.

Although nothing is official, O’Brien is bringing six assistants with him from Penn State: Charles London (running backs), Stan Hixon (receivers), John Butler (defensive backs), Anthony Midget (assistant defensive backs), Jim Bernhardt (special assistant to head coach) and Pat Fitzgerald (strength and conditioning).