It is hard to remember the last time Texas Tech added a backup quarterback from outside the program who generated as much intrigue as Tommy Castellanos.
The former Florida State quarterback has only been on the roster for about a week, yet he has already become one of the most talked-about Red Raiders on the South Plains. That's pretty remarkable for a player who isn't expected to start.
But here's the fun part: Texas Tech apparently didn't bring Castellanos in just to stand on the sideline holding a clipboard.
Head coach Joey McGuire has plans for him.
"I do think...that whenever we get him fully integrated, I think he's going to end up in every game," McGuire said Monday. "He's extremely dynamic with the ball in his hand...you don't see a lot of quarterbacks that are not in a true triple-option offense that rush for 1,100 yards [in a season]. So the guy is really dynamic with the ball in his hands, so we'll have packages for him at different times to get him in the game and get him going."
That should immediately get Texas Tech fans thinking about the possibilities.
Of course, using two quarterbacks can get messy in a hurry. At almost every other position, rotating players is simply part of football. Quarterback is different.
Offenses need rhythm. Quarterbacks need rhythm. Constantly swapping quarterbacks can destroy that rhythm, which is why Tech needs to be smart about when it puts Castellanos on the field.
Fortunately, there is one area where using him makes almost too much sense.
Texas Tech needs a red-zone weapon
For everything Texas Tech's offense accomplished in 2025, scoring touchdowns in the red zone remained a frustrating problem.
The Red Raiders found the end zone on only 55.4% of their red-zone opportunities, ranking 98th nationally.
That was essentially the one glaring weakness for an otherwise productive offense.
One reason was the lack of a legitimate quarterback running threat.
Behren Morton played the entire season with a hairline fracture in his leg, meaning Tech understandably wasn't interested in repeatedly sending its starting quarterback crashing into defenders near the goal line.
The Red Raiders could face a similar dilemma with Will Hammond.
Hammond has the athleticism to hurt defenses with his legs, but he is less than a year removed from tearing a ligament in his knee. There is little reason for Texas Tech to expose its starting quarterback to unnecessary punishment, especially when it now has Castellanos waiting on the sideline.
That's what makes this addition so interesting.
Castellanos gives defenses a problem
Castellanos has scored 24 rushing touchdowns during his college career, including nine last season at Florida State.
Those numbers aren't an accident.
He is a nightmare to deal with when he has the football in his hands. Castellanos isn't necessarily going to overwhelm defenders with blazing straight-line speed. His game is more about quickness, change of direction and making defenders miss.
Those qualities become especially valuable when the field shrinks inside the 20-yard line.
Imagine Tech getting to the opponent's 8-yard line and sending Castellanos into the game.
Now the defense has to account for the running back. It has to account for Castellanos keeping the football. It has to worry about option concepts, quarterback draws and designed runs.
And here's what could make the package particularly dangerous: Castellanos can actually throw.
He's tossed 48 touchdown passes during his college career, so a defense can't simply see him enter the game and assume the Red Raiders are about to run the football.
That's the difference between a gimmick and a legitimate offensive package.
This could be a lot of fun
McGuire shouldn't disrupt Hammond's rhythm simply for the sake of finding snaps for Castellanos. If the offense is rolling down the field, there will be times when the best move is to leave Hammond alone and let him finish the drive.
But there should also be situations where Castellanos becomes a perfect changeup.
Third-and-short. Goal-to-go. Two-point conversions. Short-yardage situations where the defense has to account for every possible runner.
Those are the moments when Castellanos could become one of Texas Tech's most entertaining offensive weapons.
And after watching backup quarterbacks so often enter games because of injuries over the years, Red Raider fans might finally get something different in 2026.
Texas Tech could actually put its backup quarterback on the field because it wants to.
