Big 12 takes hit from shoddy defenses of Oklahoma, Texas
Iowa State quarterback Brock Purdy (15) runs from Oklahoma linebacker Nik Bonitto (11) during the second half an NCAA college football game, Saturday, Oct. 3, 2020, in Ames, Iowa. Iowa State won 37-30. (AP Photo/Charlie Neibergall)

Iowa State quarterback Brock Purdy (15) runs from Oklahoma linebacker Nik Bonitto (11) during the second half an NCAA college football game, Saturday, Oct. 3, 2020, in Ames, Iowa. Iowa State won 37-30. (AP Photo/Charlie Neibergall)

Oct. 04, 2020 12:01 AM EDT
TCU quarterback Max Duggan (15) runs against Texas during the first half of an NCAA college football game, Saturday, Oct. 3, 2020, in Austin, Texas. (AP Photo/Eric Gay)

TCU quarterback Max Duggan (15) runs against Texas during the first half of an NCAA college football game, Saturday, Oct. 3, 2020, in Austin, Texas. (AP Photo/Eric Gay)

Oct. 03, 2020 04:42 PM EDT