Doug Nussmeier is Offensive Coordinator , Saints officially finalized hire per Underhill

I don't know about biggest advantage, but it is an advantage. The other side is that if a guy is so good as a DC that teams want him as their HC, then you have a really great DC and usually it takes a DC several years of being great before teams offer then HC jobs. It's different with OCs, one great year will get you a HC job. Though, to be fair, one great year got Staley a HC job. And if he has a few great years here, he might get another shot to be a HC just like DA did.
I think the DA and Staley type hires have happened enough times to make teams wary of short term successful DCs. If Parker is the best choice, I want them to make that choice.

I'd be really curious to know why media leaks on the defensive side have been dead quiet compared to the offensive side. The team itself hasn't let out a single peep about anyone on the staff other than Moore. My guess is agents are leaking to the media and I wonder what Loomis thinks about that considering they've are historically tight lipped.