Opening spring camp: Texas A&M

Schedule: The Aggies will open spring practice Saturday and conclude on April 13 with their annual Maroon & White Game at 4:30 p.m. ET at Kyle Field. Practices will be closed to the public, but the Friday Night Lights event on April 5 will be open and free of charge. It will include a scrimmage at Kyle Field.

What’s new: Clarence McKinney takes over as the Aggies’ primary playcaller on offense. McKinney called the plays in the 41-13 win over Oklahoma in the AT&T Cotton Bowl after Kliff Kingsbury left to take the Texas Tech head-coaching job. Sumlin then promoted McKinney to offensive coordinator. McKinney will also still coach the running backs. Jake Spavital joins the staff as co-offensive coordinator and quarterbacks coach after spending the past two seasons on the West Virginia staff under Dana Holgorsen. Jeff Banks replaces Brian Polian as special-teams coordinator and tight ends coach after spending the past nine seasons on the UTEP staff.

On the mend: Sophomore defensive end Julien Obioha missed the Cotton Bowl with an injury, so his status this spring is up in the air. Sophomore linebacker Michael Richardson is recovering from a spine surgery.

On the move: Junior Cedric Ogbuehi is moving from right guard to right tackle and will take over for senior Jake Matthews, who will be sliding over from right tackle and stepping in at left tackle for Outland Trophy winner Luke Joeckel.

Prime positioning: Junior Deshazor Everett could play cornerback or safety. He started all 13 games last season, but shuffled between cornerback and safety. Junior Howard Matthews returns at safety after having a breakout 2012 season.

Question marks: The status of returning starter Kirby Ennis at defensive tackle is up in the air after his arrest and subsequent suspension from the team. He was arrested on a gun charge last month. Two other senior tackles -- Spencer Nealy and Jonathan Mathis -- are also gone. The Aggies will need some younger players to develop in the middle of that defensive line, and replacing Damontre Moore at end will also be a challenge. Sophomore Alonzo Williams could factor in at both end and tackle after playing some last season as a true freshman. He started for the injured Obioha in the Cotton Bowl.

New faces: Eight players from the 2013 class are already enrolled and will go through spring practice. Four linebackers are part of that group, and the Aggies lost two senior starters -- Jonathan Stewart and Sean Porter. Tommy Sanders, one of the top-ranked junior college linebackers in the country, could be an immediate contributor as an outside linebacker. Freshman Reggie Chevis of Houston will get a long look at middle linebacker. Freshman Alex Sezer of Orange, Texas, could make a run at one of the starting cornerback jobs. Junior college newcomer Cameron Clear, who started his career at Tennessee, will be somebody to watch at both tight end and H-back.

Breaking out: There’s another Matthews on the horizon. Mike Matthews, the younger brother of Jake Matthews, is the front-runner to replace Patrick Lewis at center. The younger Matthews played some last season as a true freshman. Also, junior receiver Malcome Kennedy had a strong close to last season and will be looking to build off that momentum. The Aggies are losing three senior starters at receiver, including Ryan Swope.

Don’t forget about: Junior running back Brandon Williams is ready to go after sitting out last season. A transfer from Oklahoma, Williams could also be a factor on kickoff returns. He’s one of the most explosive players on the roster and has big play written all over him.

Backed up: The Aggies shouldn’t have any shortage of options at running back, even with Christine Michael departing. In addition to Williams, Oregon transfer Tra Carson will be eligible in 2013. At 240 pounds, he projects as the short-yardage guy. Sophomore Trey Williams rates up there with Brandon Williams as a solid breakout candidate and averaged 5.8 yards per carry last season on limited touches. Senior Ben Malena returns as the feature back. He was one of the more underrated running backs in the SEC last season with 808 rushing yards and eight touchdowns and is also a solid pass protector.

All eyes on: What does Johnny Manziel do for an encore, and how does he mesh with his new offensive coordinator? He set an SEC record with 5,116 yards of total offense last season and won the Heisman Trophy. Redshirt freshmen simply aren’t supposed to put up those kinds of numbers, but Manziel just got better and better as the season progressed. Now, the question becomes: How does he handle that success, and what kind of blow will it be for him to lose Kingsbury as his coordinator and quarterbacks coach? It certainly didn’t seem to faze him in the bowl game. The bigger question may be Manziel’s backup. Jameill Showers transferred to UTEP. Redshirt freshman Matt Davis will battle junior Matt Joeckel for that job.