FARGO — Tim Polasek stood just outside the Nodak Insurance Football Performance Complex on an outdoor field, watching North Dakota State’s defensive linemen go through a drill. The sun was blazing, the temperature was 94 degrees, sweat soaked through the head coach’s green polo shirt and ballcap. The linemen would crouch low, hold their arms in front of their body and an assistant coach would throw a medicine ball at them. No. 60, impressive red…