Littrell is another nice name and would be very good if he brought Harrell along with him. He was a good (the last good UNC OC) and has done a nice job for three years at North Texas. Like Zbrod said, he shouldn't be a top 5 guy, but he would be in my top 10.
My top five (in order):
1. Matt Campbell
2. Dino Babers
3. Neal Brown
4. Aranda or Venables (tie). Consistently strong DCs year after year at top programs should be considered. Both have been consistently strong for a very long time against top competition.
5. Leach. Just the pure fascination of him in Miami. I actually think he'd be very good and would energize the program in a way that it hasn't been in a very long time. His coaching tree is impressive.
I want a guy that has done more with less. Period. And before anyone references Golden coming from Temple he actually UNDERACHIEVED there with the biggest recruiting budget in conference and never winning the conference in four years.