Could Texas Tech be facing a QB controversy?

Posted by ESPN.com's Tim Griffin

I know that Texas Tech starting quarterback Taylor Potts' injury knocked him out of the game.

But Steven Sheffield's dramatic performance off the bench already has some Tech fans clamoring about his chance at leading the Tech offense permanently.

The Red Raiders responded to the quarterback change by charging to a 48-28 victory over New Mexico. Sheffield directed his team to touchdowns on his first four possessions, completing 16 of 22 passes for 239 yards.

Sheffield's big effort enabled the Red Raiders to snap a two-game losing streak.

But most importantly, it helped boost some confidence in a lagging Tech offense before he was inserted. Potts had been victimized by two interceptions before he was injured.

It will be interesting to hear coach Mike Leach's spin after this one.

Does Leach have a potential battle for playing time brewing? It would be a first in his time at Tech.

Or does he merely have a backup quarterback he can turn to when he needs him.