I think Utah's D ends vs. BYU's lackluster and inexperienced tackles is going to have Mangum running for his life.
I'll also ask again: Why in the world do you think Utah's offense is going to be any worse than it has been in the past? BYU's lost the best part of its secondary, too. I laugh when you say "the rest of Utah's receivers" are mediocre but then...what exactly has BYU got at receiver? At tight end?
There isn't one BYU tight end or receiver that I'd take over a Utah tight end or receiver right now.