Not really. Iowa is not important anymore. Santorum and Huckabee won there and lost NH in 2012, 2008. Heck even Dole trounced H.W. there in 1998, totally meaningless.
Tell that to Dubya, Barack Obama and Jimmy Carter. Sweater Vest & Huckleberry didn’t have $100 million in their war chests to follow thru on their Iowa wins or solid ground games in the following states. Cruz does. See the difference?