Deion Sanders believes his Colorado football coaching staff is the best he’s ever assembled.

New defensive coordinator Chris Marve is a big reason why. The last time Marve was a defensive coordinator (at Virginia Tech in 2024), he led a unit that was the No. 3 scoring defense in the ACC (22.8 points per game).

Coach Prime said in March that Marve is “over qualified” to be the Buffs‘ DC and the former All-SEC linebacker made a strong impression during the spring. He’s young, energetic and fiery. Exactly the kind of personality needed to balance Coach Prime’s calm demeanor.

Marve says his defense has four metrics: play violent and aggressive, play fast, play smart and play with effort. Colorado football fans will have to wait until Week 1 vs. Georgia Tech to see that in action but those habits are built in fall camp.

The Buffs had their first practice of camp on Monday in Colorado Springs and this first week or so is about what Marve calls “identity fortification.”

“I know that our identity will be on display. Period. It’s about how we play, not what we’re doing,” Marve said on The Morning Run. “Violent and aggressive. Relentless effort. Playing fast and playing smart. That’s what you’ll see.”

Here’s a fall camp preview of the Colorado football team’s defense ahead of the 2026 season.

Defensive line

Did the Colorado football team do enough to improve its interior defensive line? It’s the Buffs’ biggest question mark.

Tulane transfer Santana Hopper was one of the top defensive linemen in the portal and is a locked-in starter for Colorado in 2026. The 6-foot-2, 265-pounder racked up 10.5 TFLs and 39 QB pressures (second-most among DTs) last season. Hopper is a real difference maker who shined during the Buffs’ spring game in April.

App State transfer Dylan Manuel is a space-eating defensive tackle who could start next to Hopper and complement him well. The 6-foot-1, 300-pounder had three sacks to go along with seven TFLs last season and calls himself a run stopper.

New Mexico State transfer Ezra Christensen could be the Colorado football team’s best DL if he’s deemed eligible this season. He has a preliminary injunction hearing set for Aug. 7.

If Christensen is able to play for the Buffs this year, their defensive line should be a strength. If not, Colorado could be left relatively thin.

Maryland transfer Sedrick Smith (6-foot-4, 320 pounds), Coastal Carolina transfer Tyler Moore (5-foot-10, 290 pounds) and Baylor transfer Samu Taumanupepe (6-foot-3, 375 pounds) give the Buffs some depth and size up front.

Colorado has a few EDGE players who could kick inside if needed, too.

EDGE

It’s perhaps the most wide-open position group on the Colorado football team. There’s plenty of talent and options for DC Chris Marve to choose from.

North Dakota State transfer Toby Anene emerged as a leader for the unit this spring after racking up 14 TFLs, 13 sacks and 63 pressures over the last two seasons. The 6-foot-4, 260-pounder also has a knack for getting his hands on the football (six career batted passes).

Albany transfer Balansama Kamara (6-foot-3, 260 pounds) totaled 13.5 TFLs and 7.5 sacks last season while San Jose State transfer Vili Taufatofua earned All-Mountain West honors in 2025 with seven TFLs and three sacks.

James Madison transfer Immanuel Ezeogu could join the aforementioned in the two-deep thanks to his rare explosiveness (ran a 4.46 40-yard dash at 6-foot-2, 24o pounds during winter workouts). He posted 15 tackles and a sack last season.

Domata Peko Jr. (pass-rush specialist) and Kylan Salter (physical run defender) could also carve out a role.

Linebacker

Chris Marve specializes in linebacker play and he loves this group.

Bowling Green transfer Gideon ESPN Lampron is the headliner after earning first-team All-MAC honors in 2025. He was the only player in college football last season with 100-plus tackles and 15-plus TFLs. Lampron is the kind of high-IQ, sideline-to-sideline player the Colorado football team lacked last year.

Texas transfer Liona Lefau brings SEC experience and production with him to Boulder. The 6-foot-1, 230-pounder was a two-year starter with the Longhorns, totaling 138 tackles and three sacks during his time in Austin.

New Mexico State transfer Tyler Martinez suffered a season-ending in 2025 but was the Aggies’ leading tackler (96 total, 47 solo) as a junior in 2024. The 6-foot-1, 220-pounder will play in three-linebacker sets and could push Lefau for starting reps.

Linebacker is arguably the Buffs’ most improved position group, especially with a pair of former four-stars in the room (true freshmen Rodney Colton Jr. and Carson Crawford).

Cornerback

Cree Thomas was the Colorado football team’s biggest winner of the offseason. The Notre Dame transfer didn’t play much as a true freshman but he hit the ground running in Boulder, intercepting five passes during the first two practices of spring ball.

The 6-foot-1, 190-pounder has the size, length, technique and ball skills to be a lockdown corner. Coach Prime stamped Thomas this spring as “the No. 1 right now” and Chris Marve recently joked that they need to get him an office in the facility with how much he’s there.

Boo Carter is probably the most recognizable name on the Colorado football roster (aside from Julian Lewis) and for good reason. Coach Prime said the Tennessee transfer is the best athlete on the team and after beginning spring ball at nickel/slot cornerback, Carter made the transition to outside cornerback.

“He can do many things and I want him to do all those things that he’s capable of doing so that his (NFL) draft wealth accelerates,” Deion Sanders said in April. “He’s that kind of kid.”

If Carter has the kind of season he’s capable of having, he’ll hear his name called during the 2027 NFL Draft. It remains to be seen if Carter will stick at outside cornerback or return to the nickel/slot. Wherever he settles in at will open up a competition at the other spot.

Transfers Justin Eaglin (James Madison), Emory Floyd (App State) and Paul Omodia (Lamar) will be in the mix for a starting role and playing time. Returners RJ Johnson and Makari Vickers will, too.

Safety

The Colorado football team could have the best safety duo in the Big 12 this season.

Vanderbilt transfer Randon Fontenette racked up 125 tackles, 14.5 TFLs, 14 PBUs and 3.5 sacks over the last two seasons in the SEC. The 6-foot-2, 220-pounder is another Buff with an NFL future.

New Mexico State transfer Naeten Mitchell is a perfect complement to Fontenette’s skillset. He impressed during the spring after leading the Aggies in tackles (93), PBUs (6) and forced fumbles (4) last season.

Team leader Ben Finneseth will play a vital role for that group and Oklahoma transfer Jaydan Hardy could also find his way onto the field.

Top position battle for Colorado football defense

The nickel/slot cornerback is up for grabs if Boo Carter sticks at outside cornerback.

It’s a key position because this player will often times have to cover an opponent’s best route runner. Because of the position’s closer proximity to the line of scrimmage, this player will also have to be a capable and willing tackler in the run game.

With that in mind, Indiana transfer Jah Jah Boyd could be the one to watch. He played in just five games for the national champion Hoosiers last season but shined during the Colorado football spring game, totaling four tackles and a TFL.

JMU transfer Justin Eaglin was an all-conference ballhawk at outside cornerback last season, posting eight PBUs and five INTs (one pick-six), but he saw snaps at nickel/slot during April’s spring game. The 6-foot-1, 175-pounder might get a shot to start early simply because of the investment made in him this offseason.

Don’t sleep on true freshman Braylon Edwards, though. The 5-foot-11, 180-pounder opened eyes this spring with some big hits and mature play for a young guy. Coach Prime has never been afraid of playing true freshmen in the Colorado football secondary and Edwards could thrive if given the opportunity.

Sleeper players

DL Lamont Lester Jr. is a breakout candidate after he led the FCS with 49 pressures on true dropbacks and was named the CAA Defensive Rookie of the Year last season. The 6-foot-2, 230-pounder totaled 11.5 TFLs to go along with 9.5 sacks in 2025 and is the top-ranked FCS-to-FBS EDGE transfer, according to PFSN.

DL Malachi Brown was a late addition to the Colorado football team and could prove to be valuable if Ezra Christensen is ruled ineligible. The 6-foot-5, 300-pounder totaled seven TFLs and four sacks at the JUCO level in 2025.

LB Rodney Colton Jr. was a blue-chip recruit who has transformed his body since joining the Colorado football team as an early enrollee. The Buffs’ top three LBs are set, but Colton Jr. might be an important No. 4 as a true freshman.

DB Jason Stokes Jr. is someone to keep an eye on. The 6-foot-2, 185-pounder played in every game at Utah last season (primarily on special teams) and could crack the rotation with a strong fall camp.

DB Maurice Williams Jr. is another true freshman defensive back who could see the field early for the Colorado football team. He flashed ball-hawking ability throughout the spring, including an interception on the final play of the spring game.

Follow Colorado Buffaloes beat reporter Scott Procter on X.