Del Rio out, USC moves to option No. 4

Jack Del Rio has opted to stay with the Jacksonville Jaguars instead of replacing Pete Carroll at USC, making him the third candidate to apparently say no to the Trojans.

Del Rio follows Oregon State's Mike Riley and Tennessee Titans coach Jeff Fisher.

Now what?

Move on to option four. And so on.

You can follow many of the rumors here.

The newest name on the list, as reported by ESPN NFL Insider Adam Schefter: Steve Mariucci, the former California Bears, San Francisco 49ers and Detroit Lions coach.

Mariucci presently works for NFL Network and hasn't coached since 2005.

He leads a list that Scott Wolf of the LA Daily News made. Mariucci is followed by Herman Edwards, Steve Sarkisian and Lane Kiffin on said list.

If it feels like reporters are starting to trot out a group of the "usual suspects," well, that's not an unjustified suspicion.

So you should probably should throw Stanford coach Jim Harbaugh in there, too.

The LA Times reported this morning that Boise State coach Chris Petersen and former Oregon coach Mike Bellotti are potential candidates.

USC doesn't seem like a good fit for Petersen -- too "big city" -- while Bellotti is recovering from double knee-replacement surgery.

Two outstanding coaches who probably would listen to overtures are TCU's Gary Patterson and Utah's Kyle Whittingham. It doesn't appear either has been contacted.

USC fans might want to ask why.

For Trojans fans, this has to feel like déjà vu all over again. In 2000, Mike Garrett was rejected by three candidates before settling on Pete Carroll.

Will No. 4 be a charm for him again?