Downtrodden and injury-plagued BYU will try to upset Boise State despite shaky QB situation
If Tanner Mangum can’t play, look for freshman RM Joe Critchlow to make his debut
BYU quarterback Tanner Mangum, right, celebrates on the sidelines during the Cougars' 2015 game against Boise State in Provo, Utah. (AP Photo/Rick Bowmer, File)