It's basically an automatic yes
His alma mater
Significant pay increase from what he had at BYU
Instant access to all the very best recruits-didn't have that at BYU
National Title contender year in and year out-didn't have that at BYU
Conference champ contender year in and year out-didn't have that at BYU
Changes his coaching resume to top tier in an instant-BYU doesn't provide that
Instant upgrade in cash you have access to to run your program
Always mentioned in college related sports broadcasts, etc-didn't have that at BYU
This was a no brainer.
We should all wish him well. Unless you suck at your career, have no motivation, or otherwise could care less about success--you would have made the same move if in the same situation.