Jeromy Irwin has been at Colorado long enough — about 7,000 years, by his estimation — to have experienced just about everything as a football player.
Given his journey through college football, playing a new position doesn't bother the sixth-year senior.
Last year's starter at left tackle, Irwin has spent much of this spring at left guard, as the Buffaloes try to get looks at other players at tackle.
Offensive line coach Klayton Adams is searching for the best combination of five linemen, and it's possible that Irwin's best fit for this next season is at guard.
That would be just fine for Irwin, who has 26 career starts at left tackle, including 13 last season.
"I love guard," said Irwin, who was second-team All-Pac-12 at tackle last season. "I played guard my first year or two years here and all through high school. Coach is just trying to get looks everywhere on the line. I like what he's doing."
Ideally, the Buffs would go throughout the entire season with the same five starters on the line, but that's not usually how the season plays out. The last time CU did that was in 2013. Last year, nine different players started on the offensive line, with five of them returning next season.
Because of that, Adams' goal is to train players at multiple positions in case they need to fill in for somebody in a pinch during the season. Irwin believes that playing guard this spring has made him a better overall player.
"Throwing me back at guard is helping me learn more of the offense and more of the technique across the line, so I like it," said Irwin, who has also played a little bit at tackle this spring.
Irwin isn't the only one being moved around, either. Last year, Tim Lynott started all 14 games at right guard, but he's splitting time at center this spring. Several others are practicing at multiple spots on the line, as well.
While left tackle is the marquee position on the offensive line, Irwin said he doesn't have a big ego about playing there in his final season.
"Really on the offensive line, everybody does all the work," he said. "Every position I think is really important. To me, it's wherever they want to put me. I want to contribute to this team however they want me to contribute."
For Irwin, the goal is to have one last healthy season and do his part to help the Buffaloes win.
The only remaining player who came to Boulder before head coach Mike MacIntyre, Irwin is going into his sixth season because of a broken foot that cost him the 2013 season and a torn ACL that ended his 2015 season after just six quarters.
During his time, he's played for two head coaches and three offensive line coaches. He was part of a 1-11 season a freshman, went through a 14-game Pac-12 losing streak in the middle of his career, and then helped the Buffs go 10-4 and win the Pac-12 South last year.
Now, Irwin, who was one of five captains last year, is looking to keep the Buffs on the winning track.
"It's been great having Jeromy and his leadership and his work ethic and he's an excellent player," MacIntyre said. "He's been through a lot. CU means a lot to him and football means a lot, and how he's seen this program change, he takes a lot of pride in that."
Irwin's pride in the program is why he doesn't care where he lines up. If it's best for the team, it's best for Irwin, and that's part of what makes him one of the team's top leaders.
"He's one of those tough guy leaders that you need in the trenches," MacIntyre said.