Casey Thompson, who started 10 games and passed for 24 touchdowns for Texas last season, opened Nebraska's spring practice Monday as its No. 1 quarterback.

“I think he's the best one right now,” new offensive coordinator Mark Whipple said. “That might change tomorrow. There's nothing set in stone.”

Among the Cornhuskers' priorities is sorting out the quarterback situation following Adrian Martinez's transfer to Kansas State. Thompson and Chubba Purdy, who transferred from Florida State, are competing with returnees Logan Smothers and Heinrich Haarberg.

“What I saw today, attitude-wise and talent-wise, we’ve got enough there to be more than successful,” Whipple said.