According to the two-deeps set before the Liberty Bowl, Iowa State loses Lazard, Ryen, Murdock, Campos, Garcia, Larson, and Kempt on offense. That's a lot of receiving corps and offensive line to replace. On devense, they lose Waggoner, Trent, Edwards, Lanning, Alexander Wilkerson, and Cotton-Moya. Also they lose their punter, Downing, and their place kicker Owens. Not sure how all these players can be replaced.
Oh, and for those who say Kempt is a better QB.... do you think who he threw it to affected his completion percent? ISU's receiving corps isn't the best in the Big 12, but Iowa's receiving corps is one of the worst in the Big 10.