Just my two cents on this
Removing calendar is fine. But without it co-ordinating and spacing out games would be an issue.
Have a dedicated thread just for hosts to talk to each other about their timing. Also, hand over one or two coaches the responsibilities
1) to ensure coordination between hosts regarding their games like finding middle ground
2)to ensure big and small games run parallel instead of multiple big games at the same time to avoid burn out and ensure proper activity in all parallel running games.