The last new build in the SEC was Ole Miss; their program has gone backwards since their new arena.
Auburn was before that and we can point to their NCAA quarterfinal run as a highlight but will end up pointing to the FBI as well.
Missouri built a new arena almost 20 years ago and they were doing better in their 'old house.'
The "new arena leads to better basketball" argument doesn't pass my logic test. It's GREAT for the fans; minimal impact on the program itself.
BAD ANALOGY INCOMING:
~Facebook changes their name to Meta. The core remains the same. We didn't see a massive overhaul to work stations, etc.
~New arena vs Coleman. The core remains the same within the program. We won't see a noteworthy improvement for their "work stations." The practice facilities along with support facilities in Coleman, for basketball, are some of the best in the nation.