With three scrimmages under his belt, Texas A&M coach Kevin Sumlin released the first official depth chart of the 2016 season.

There weren’t a lot of surprises, but questions linger nevertheless, especially around the offensive line. With the fresh, up-tempo offensive scheme being implemented by new offensive coordinator Noel Mazzone and the excitement building around transfer quarterback Trevor Knight, if the Aggies’ inexperience offensive line can’t protect him or open holes for a new starting running back, all the planning and putting together of a new system will be thrown out the window.

And speaking of running back, it would appear — based on Sumlin’s depth chart — that James White, Oklahoma transfer Keith Ford and freshman Trayveon Williams are in a virtual dead heat for the starting spot. And that may not matter. In Mazzone’s run-oriented, fast-paced offense, all three backs look to get plenty of playing time.

The Texas A&M offensive line will be young and inexperienced. There’s simply no way around it. And it got even younger and more inexperienced with the emergence of Louisiana product Colton Prater.

An early high school graduate, Prater (6-foot-4, 295) made full use of the extra time on campus and the added snaps in spring ball with injuries to Keaton Sutherland and Connor Lanfear to impress the coaching staff enough to put himself at the top of the depth chart at left guard ahead of freshman Ryan McCollum (6-foot-5, 285). We said they were young.

Redshirt freshman center Erik McCoy (6-4, 305) has risen to the top of the depth chart ahead of fellow freshman Austin Anderson (6-foot-4, 297). Did we mention they are young?

Practically elder statesmen in comparison, sophomores Lanfear (6-foot-6, 315) and Sutherland (6-foot-5, 310) are listed 1-2 at right guard.

It’s at the tackle position that the Aggies have any sort of experience at all. Starting left tackle Avery Gennesy is the only player along the line who started every game last season. The 6-foot-5, 315-pound senior needs no introduction to Aggies fans, although he has toiled in the shadows of some big-name players over the last few years. Still, Gennesy will provide leadership for a group of relative newcomers. He is backed up at left tackle by sophomore Koda Martin (6-foot-6, 305).

Another senior, Jermaine Eluemunor (6-foot-4, 325) is apparently headed for the starting role at right tackle. He started one game last season and should also be of service as a leader along the line. Sophomore Tank Davis (6-foot-4, 290) right now is listed as the backup.

The battle for backup quarterback has apparently been secured by junior Jake Hubenak, who got his only start at Texas A&M in last season’s Music City Bowl. Freshman Nick Starkel excelled in fall camp with a big arm but will likely redshirt.

And despite a solid fall camp, the Aggies will start the season without WR Speedy Noil. The junior is suspended for Saturday’s season opener against UCLA and is not listed on the depth chart. But the outstanding receiving corps of Christian Kirk, Josh Reynolds and Ricky Seals-Jones is intact, and it’s expected to have a monster season in Mazzone’s new scheme.

So are the Aggies ready for the 2016 season opener? They’d better be because the No. 16 Bruins and quarterback Josh Rosen certainly will be when they travel to Kyle Field for Saturday’s 2:30 p.m. CT curtain-raiser.