The PM in charge of it spent probably 6 months to a year planning it with every team prior to our first gameday. The first gameday took 2-5 days to complete ent

The PM in charge of it spent probably 6 months to a year planning it with every team prior to our first gameday. The first gameday took 2-5 days to complete entirely, but we made it a bi-annual exercise and eventually got it down to ~12 hours before I left the company