Big 12 quarterback play full of struggles and surprises
Iowa State quarterback Brock Purdy (15) runs as he looks to pass against Baylor during the first half of an NCAA college football game, Saturday, Sept. 25, 2021, in Waco, Texas. (AP Photo/Jim Cowsert)

Iowa State quarterback Brock Purdy (15) runs as he looks to pass against Baylor during the first half of an NCAA college football game, Saturday, Sept. 25, 2021, in Waco, Texas. (AP Photo/Jim Cowsert)

Sep. 25, 2021 05:26 PM EDT
Oklahoma quarterback Spencer Rattler (7) passes against West Virginia during the second half of an NCAA college football game in Norman, Okla., Saturday, Sept. 25, 2021. (AP Photo/Alonzo Adams)

Oklahoma quarterback Spencer Rattler (7) passes against West Virginia during the second half of an NCAA college football game in Norman, Okla., Saturday, Sept. 25, 2021. (AP Photo/Alonzo Adams)

Sep. 25, 2021 11:16 PM EDT
Texas quarterback Casey Thompson (11) lunges into the end zone for a touchdown against Texas Tech during the first half of an NCAA college football game on Saturday, Sept. 25, 2021, in Austin, Texas. (AP Photo/Chuck Burton)

Texas quarterback Casey Thompson (11) lunges into the end zone for a touchdown against Texas Tech during the first half of an NCAA college football game on Saturday, Sept. 25, 2021, in Austin, Texas. (AP Photo/Chuck Burton)

Sep. 25, 2021 02:06 PM EDT