I'm curious. Do you live in SoCal?
Have you ever?
Or, if you do have you ever lived anywhere else?
Not being sarcastic, just curious.

I lived there for 40 years, from San Diego all the way to Santa Barbara. Mostly in the beach areas. Still have business interests there. Lots of family. Visit there for several days once or twice per year.

Left many years ago, wouldn't want to go back to live. Lot's of places to go in the USA with beaches and sun that don't have endless traffic, crowded beaches, most oppressive taxes in the entire USA, over the top housing costs, air pollution, high energy costs, water shortages, dense population, and noise 24/7.

Don't get me wrong, I understand that many don't find any problem with living with that list of things that I don't want any part of and find other aspects of SoCal positively alluring (the 35 million people there attest to that). But there are at least as many more people who don't want any part of it.

And if you think that an NFL coach, with a family, and who has choices, doesn't factor in the city where the job is....well, that's just incorrect.
But it's even more incorrect to think that LA is some huge draw for all but a few. Hardly.

Might a coach in need of a job, or as a first timer, take it wherever they can get it? Location doesn't matter? Sure. That may well be Trestman.
But top coaching talent that is in demand most definitely includes in his decision the location and family and lifestyle just as anyone in any profession does.

So no, I don't think "sun" is enough to have a long line of NFL coaches just panting to get there. Not at all. You either love the lifestyle or you don't.
In fact, what I just said is essentially what Kevin Demoff said in a news conference when they had begun their HC search. He acknowledged that some HC candidates did not want to come to SoCal mostly due to lifestyle preferences.