Norv? Really? Be careful what you wish for
First of all, this idea that Norv Turner was some "elite" offensive coordinator is ridiculous. Remember that those Cowboy teams had perhaps the best offensive line of all time, along with HOFers at QB, WR and RB. Norv didn't screw it up, I'll say that much. But Brian Schottenheimer would have won 3 SBs with those teams. But look what Norv did to Philip Rivers. The guy is a shell of himself.
I remember last offseason hearing everyone say, "Sure, Sparano was a terrible head coach, but that is irrelevant. He is a great coordinator. He invented the Wildcat!"
And here is the important point: if Norv is here next year, as the OC for Rex, and this team underachieves again (which it will), Rex will be fired and guess who will be standing right there as the #1 candidate to replace Rex as HC? It will be oh so easy and convenient for Woody to elevate a guy who, on paper, won't look so bad (those Charger teams did win a lot of games). Maybe he just needed a change of scenery, all the "experts" (read: Gary Myers) will say. And then you will all regret ever wanting him here in the first place.
Granted, Norv is perfect for the franchise that has employed such offensive geniuses as Kotite, Walton, Coslet, Hackett, et al. But if you want to re-live that kind of history, good luck with that. No thank you.