The SEC West is such a unique animal. If you're at LSU, you have to contend with the gold standard of excellence that we have. You have to deal with the fast-and-loose recruiting and corner-cutting gimmicks of Auburn and now Ole Miss. And you've got a shiny offense at A&M and rugged, physical rival in Arkansas. And Mississippi State--who should be the doormat of the division--seems to find a way to be respectable.
If your goal is to find the clearest path to the CFB playoff or to national championships, the SEC West (or the entire conference, for that matter) is not that path. Urban Meyer was smart enough to figure that out. Fewer quality teams stand in your way just about anywhere in the Power 5 than here.
If you're a 40-something coach with perhaps 20ish years of prime, multi-million dollar earning potential, does the job in Baton Rouge make the most sense? Maybe if you're confident you can win enough early enough to outlast Coach Saban, perhaps it does.
It takes a very special, driven person to want to take on that challenge. All the tools are there to be successful, but it is such a good division that even near-perfection may not be good enough in many seasons. I'm sure there are coaches on their list who would embrace the challenge, but there may be some that prefer a safer path someplace else.