Lubbock, Texas ? Mike Leach won’t need to tweak Texas Tech’s offense should his backup quarterback start against Kansas State tonight.

Taylor Potts, the nation’s No. 2 passer, is doubtful for the game against the Wildcats. He was hospitalized overnight with a concussion following the Red Raiders 48-28 victory over New Mexico last week.

Steven Sheffield, a former walk-on, came in late in the first half after Potts was sacked twice in three plays. Sheffield, who threw for 238 yards and three touchdowns, brought a spark to Texas Tech’s offense.

“I don’t change anything with him. I don’t have to change anything,” Leach said. “Of our quarterbacks we have right now, he creates the best tempo for the group, and I think it’s something everybody feeds off of.”

There is one difference between Potts and Sheffield, Tech offensive lineman Marlon Winn said.

“Potts has a mustache,” he said.

The Red Raiders’ high-octane offense will face one of the nation’s best passing defenses in Kansas State. The Wildcats are ranked seventh nationally and first in the Big 12, allowing just 153 yards per game.

“We know that they are a very pass-heavy team so we have to focus on getting a better pass rush than we have done all season,” defensive lineman Jeffrey Fitzgerald said. “We just have to stay fundamentally sound and stick with our keys.”

Texas Tech offensive lineman Brandon Carter, suspended by Leach for an undisclosed violation of team rules after a 29-28 loss to then-No. 17 Houston two weeks ago, is back with the team and was expected to play against the Wildcats.

Kansas State coach Bill Snyder, back after a three-year retirement, is well aware of the Red Raiders quick-strike potency — no matter who is taking snaps.

Keeping Texas Tech’s offense off the field and hurrying its quarterback are paramount, he said.