Holtz’s assignment is temporary for the upcoming months and won’t interfere with his USFL job as the head coach of the Birmingham Stallions, according to ESPN sources. He enters a difficult situation at Northwestern, which fired coach Pat Fitzgerald this summer in the wake of a flurry of hazing allegations. A spate of lawsuits have followed the firing. Holtz will be tasked with being a veteran resource to interim Northwestern coach David Braun to help he and the Wildcats navigate the season.