We posted before that Mel Tucker was a possible candidate to become the next defensive coordinator. Now, the Vikings have officially requested a permission for an interview from the Jaguars. Tucker is one of four known candidates for along with Steve Spagnuolo, Raheem Morris, and current Vikings’ LB and assistant coach Mike Singletary. This calls into question Fred Pagac’s future with Minnesota but it is believed he could be retained and coaching in a different capacity.