With the Texas Tech football season only 10 days away, Joey McGuire and his staff are still adding pieces to a roster built to compete for a Big 12 championship.
This time, they added an insurance policy.
Former Florida State and Boston College starting quarterback Thomas Castellanos has committed to Texas Tech after receiving a temporary injunction allowing him to play a fifth season of college football.
At first glance, adding another quarterback this close to the season might seem strange. Tech already has its starter in Will Hammond, and Castellanos isn't coming to Lubbock to create a quarterback controversy.
He's coming because Texas Tech knows better than almost anyone how quickly a season can change when the starting quarterback gets hurt.
And for a program with College Football Playoff aspirations, that's reason enough to make this move.
Castellanos gives Tech something most teams don't have
Castellanos has taken a winding path to Lubbock.
Texas Tech will be his fourth college after stops at UCF, Boston College and Florida State. He appeared in five games for UCF in 2022, played in 21 games for Boston College over the next two seasons and started all 12 games for Florida State last year.
His career numbers tell the story of an experienced but imperfect quarterback.
Castellanos has thrown for 6,449 yards while completing 58.5% of his passes. He's 16-16 as a starter and has thrown 28 interceptions on only 816 attempts, an average of one interception every 29.1 passes.
That's certainly not ideal.
At 5-foot-11 and 201 pounds, his size also presents some concerns, especially considering how much of his game depends on his legs.
But those legs are also what make him such an intriguing backup.
Castellanos has rushed for 1,984 yards and 24 touchdowns during his career. His ability to create outside the pocket gives Texas Tech an entirely different option if Hammond is forced to miss time.
We've also seen Castellanos perform on a big stage.
Last season, he helped Florida State stun No. 8 Alabama 31-17 in the season opener. He didn't light up the stat sheet through the air, completing passes for only 152 yards, but he added 78 rushing yards and a touchdown.
That's the type of experience Tech couldn't easily replicate with a typical backup quarterback.
Texas Tech knows quarterbacks get hurt
Ideally, Castellanos spends most of the season wearing a headset and watching Hammond lead the Red Raiders.
History suggests Tech shouldn't count on that.
Last season, Behren Morton started all but one game despite playing with a hairline fracture in his leg. The previous year, Morton made it through all 12 regular-season games before shoulder surgery kept him out of the bowl game.
In nine of the past 10 seasons, Texas Tech has needed a backup quarterback to make at least one start.
Even more remarkable, the Red Raiders have been forced to start a third-string quarterback at least once in five of those seasons.
The last Texas Tech quarterback to start every game in a season was Patrick Mahomes in 2016.
At this point, having to turn to the backup isn't some remote possibility in Lubbock. It's practically an annual tradition.
That's why adding Castellanos makes so much sense.
This is what going all-in looks like
If Texas Tech's goal were simply to reach a bowl game, this move probably wouldn't be necessary.
The Red Raiders could enter the season with sophomore Lloyd Jones or Tulsa transfer Kirk Francis behind Hammond and probably feel reasonably comfortable with their quarterback depth.
But reasonable isn't what Tech is building toward in 2026.
This roster has been assembled to win the Big 12 and reach the College Football Playoff. When those are the expectations, roster construction has to look different.
You don't prepare only for the ideal scenario. You prepare for the scenario where Hammond gets knocked out of a critical conference game in October and somebody else suddenly has to keep a championship season alive.
That's where Castellanos changes the equation.
He's not a perfect quarterback. His interception rate is concerning, his career record is pedestrian and his aggressive style can produce frustrating mistakes.
But we're talking about Texas Tech's backup quarterback.
How many programs can turn to a player with 32 career starts, more than 6,400 passing yards, nearly 2,000 rushing yards and experience beating a top-10 Alabama team?
Probably not many.
And that's the point.
Texas Tech isn't bringing Castellanos to Lubbock because it doubts Hammond. It's bringing him in because the Red Raiders finally have the type of roster where one injury shouldn't be allowed to destroy an entire season.
Hopefully, Castellanos never has to save Texas Tech's season.
But after watching quarterback injuries become an almost yearly storyline in Lubbock, the Red Raiders would be foolish not to prepare for that possibility.
Championship contenders don't just build starting lineups.
They build contingency plans.
