Jim Knowles spent preseason camp telling Tennessee’s defense it was ahead of schedule.
Saturday should provide the first real indication of what that means.
The Vols dominated Furman in their season opener without showing much of the disguise and deception that have become staples of Knowles’ defenses. Tennessee used multiple fronts and moved linebackers around, but the game never required Knowles to dig deep into his pressure package.
Georgia Tech should.
The Yellow Jackets bring significantly more size up front, an established running back in Justice Haynes, and a clear incentive to reestablish a physical identity after struggling to run the football against Colorado.
For Tennessee, that creates an early measuring stick for a defensive front that has a chance to look considerably different from last season.
Tennessee Needs disruption up front
Tennessee’s 2025 tackle distribution illustrates part of the challenge.
The Vols’ top eight tacklers were linebackers or defensive backs before Joshua Josephs appeared at No. 9.
Tennessee allowed nearly 180 rushing yards per game, forcing its linebackers and secondary to finish too many plays downfield.
That is where this year’s defense could change.
Instead of consistently asking linebackers and safeties to clean up runs beyond the line of scrimmage, Tennessee has an opportunity to create more negative plays before they develop.
Week 1 offered an encouraging glimpse. Furman rushed for just 66 yards in the first half.
The front was disruptive from the opening snap.
Now it has to prove that disruption can translate against Power Four size.
Xavier Gilliam gets a much different test
Xavier Gilliam made an immediate statement in his Tennessee debut.
The transfer defensive lineman finished with five tackles for loss and three sacks, consistently affecting plays before Furman could establish its offense.
Georgia Tech presents a much different challenge.
The Yellow Jackets feature several offensive linemen standing 6-foot-5 or taller and weighing more than 300 pounds. Their offensive identity is also built around a player who prefers to run directly into the heart of a defense.
Haynes was a third-team All-Big Ten selection at Michigan last season. He rushed for 857 yards and 10 touchdowns in seven games while averaging 7.1 yards per carry.
He managed 64 yards on 19 carries against Colorado in Georgia Tech’s opener, while the Yellow Jackets finished with just 51 rushing yards as a team.
Josh Heupel called Haynes a dynamic and extremely physical runner while also emphasizing his vision.
That creates the matchup to watch.
Can Gilliam reset the line of scrimmage, force Haynes to change direction and continue creating disruption when he receives more attention?
Another three-sack game is not the expectation.
Controlling where the run begins may be more important.
Tennessee’s edge rushers need to take another step
Gilliam’s emergence could also create opportunities elsewhere.
Tyree Weathersby sacked Furman quarterback Jake Garcia on Tennessee’s first defensive snap of the season. Mariyon Dye also generated pressure and recorded a sack.
Georgia Tech will ask more from both.
The challenge is not simply getting to first-year quarterback Alberto Mendoza. Tennessee’s edge rushers must set the edge, maintain rush lanes, and prevent Georgia Tech from consistently creating manageable down-and-distance situations.
That could determine how much freedom Knowles has as a play caller.
If Georgia Tech is consistently facing second-and-5 or third-and-2, Tennessee may have to devote more resources to stopping Haynes.
If the Vols create second-and-9 and third-and-7?
That is where Knowles becomes considerably more difficult to deal with.
Colorado sacked Mendoza three times in his first career start. Georgia Tech coach Brent Key acknowledged afterward that some of the protection issues came against varied fronts, blitzes and pressures rather than simply losing one-on-one matchups.
That is exactly the environment Knowles wants to create.
Arion Carter adds another piece
Tennessee also gets another important piece back Saturday.
Arion Carter is set to make his season debut after serving a one-game suspension against Furman.
Carter was tied for third on Tennessee’s defense in tackles and tackles for loss last season despite battling injuries and missing time.
His return gives Knowles even more flexibility at linebacker.
Amare Campbell already has extensive experience in Knowles’ system. Edwin Spillman played well in the opener. Jeremiah Telander lined up in multiple spots against Furman, including near the line of scrimmage.
Now add Carter.
That depth allows Knowles to change the picture before the snap without necessarily changing personnel.
And that is where Tennessee’s preseason progress could begin to matter.
Georgia Tech could reveal what “ahead of schedule” really means
Tennessee did not need its entire defensive package against Furman.
It may need considerably more Saturday.
Georgia Tech coach Brent Key made it clear after the Colorado loss that the Yellow Jackets’ identity remains rooted in running the football and stopping the run.
Tennessee should expect that identity to be tested immediately.
If the Vols can hold up against Georgia Tech’s size, disrupt Haynes without committing extra defenders and consistently put Mendoza behind the sticks, Knowles will have opportunities to introduce more of the disguise and deception Tennessee largely kept hidden in Week 1.
That is the next step.
Furman showed the foundation.
Georgia Tech should begin revealing what Tennessee being “ahead of schedule” actually looks like.
