Iowa head coach Kirk Ferentz looks at the scoreboard while playing Purdue in the second half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 3, 2018. (AP Photo/AJ Mast)

Purdue quarterback David Blough, right, gets tackled by Iowa defensive back Geno Stone (9) in the second half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 3, 2018. (AP Photo/AJ Mast)