The Las Vegas Raiders took big swings to address their most glaring roster issues this offseason. After many years of losing football, the Raiders are in the early stages of rebuilding their roster from the ground up. The moves they made this offseason helped them make undeniable progress. Feb 10, 2026; Henderson, NV, USA; Las Vegas Raiders coach Klint Kubiak speaks at introductory press conference at Intermountain Health Performance Center. Mandatory Credit: Kirby Lee-Imagn Images | IMAGN IMAGES via Reuters ConnectRaiders general manager John Spytek and the rest of the front office did an admirable job making as much progress on fixing their roster as they reasonably could have in one offseason. They still have more work to do, but for now, they have improved. Las Vegas' roster moves solidified several critical positions ahead of training camp, enough so that the Raiders' coaching staff should feel comfortable with the pieces they have been given. Still, their offseason moves do not detract from the quiet gambles they are making this season.Kolton Miller's HealthDec 30, 2018; Kansas City, MO, USA; Oakland Raiders offensive tackle Kolton Miller (77) gets ready to block against the Kansas City Chiefs at Arrowhead Stadium. Mandatory Credit: Jay Biggerstaff-USA TODAY Sports | IMAGN IMAGES via Reuters ConnectArguably, the most significant gamble the Raiders are taking this upcoming season will be on the health of left tackle Kolton Miller. Since being drafted in 2018, Miller has been one of the best players at his position, which is among the most critical on the field. Multiple outlets have named Miller as arguably the best No. 15 pick in the draft since he was drafted, regardless of position. That is how good he has been, and why the Raiders are willing to enter the season without a proven left tackle behind Miller, even though he missed 13 games last season.December 2, 2018; Oakland, CA, USA; Oakland Raiders offensive tackle Kolton Miller (77) during the first quarter against the Kansas City Chiefs at Oakland Coliseum. The Chiefs defeated the Raiders 40-33. Mandatory Credit: Kyle Terada-USA TODAY Sports | IMAGN IMAGES via Reuters ConnectThe Raiders drafted offensive lineman Trey Zuhn earlier this offseason, who was one of the top offensive linemen in the Southeastern Conference in college football last season. He can play all five positions but has lined up primarily at right tackle throughout this offseason.More importantly, Zuhn was one of the best offensive linemen in the SEC, while primarily playing left tackle. He confirmed earlier this offseason that he is most comfortable playing left tackle. Zuhn may or may not be the reserve option behind Miller.Jacksonville Jaguars linebacker Travon Walker (44) pressures Las Vegas Raiders offensive tackle Kolton Miller (74) during the first quarter of a regular season NFL football matchup Sunday, Nov. 6, 2022 at TIAA Bank Field in Jacksonville. The Jacksonville Jaguars held off the Las Vegas Raiders 27-20. [Corey Perrine/Florida Times-Union]