The reason analytics was developed and utilized was for cheap teams. That rich teams use it is irrelevant.
Middle of the pack in the current system is simply not good enough.
Teams were hiring statistical staff decades ago.
Analytics weren’t created for cheap teams, they just leaned into more advanced ones because they had to. Big market teams always used stats, even if mostly traditional ones. Smaller teams pushed deeper analytics to find market inefficiencies and undervalued assets, the Oakland Athletics weren’t the first, just the most famous.
Now everyone’s doing it, and the edge is still about out innovating each other. The Yankees of old, and teams like the Dodgers today, can just pay for the elite players the models identify. The New York Mets didn’t pursue Juan Soto because they liked his makeup, they saw elite production in the numbers and paid for it. Lower budget teams are still trying to find the undervalued guy before everyone else catches on.
The Rizzo Nationals had a stats department. The Nat didn't win a World Series by being luddites. I just hope Toboni is now better and more effectively integrating it throughout the organization.