It would take a lot of servers and a full time statistician. That's probably a $200,000 investment just in testing, which I'm not sure GLB is ready to make.
But honestly.. You use an analyst/tester to get you to a steady state, move the game out of beta, market, and then use the analyst to produce real-time reports that mines the production databases to ensure the balance is maintained. You can move from testing to analyzing what drives player retention, boosting, optimal flex pricing, roster sizes, number of teams to introduce, where marketing campaigns are working, etc.
I'm not sure what type of staff GLB has, but I can't imagine this game getting very far without a position like this. Especially when it comes to finding the sim GLB needs.
(I'm not marketing myself, lol, I have a job
. In fact, my current job works WITH sites like this, though
)