No one knows how the football calendar will play out over the coming weeks, months and even years. Some leagues are cancelled entirely. Others have been postponed indefinitely. Some will play behind-closed-doors and push back future seasons. Others will squeeze everything in so as not to disrupt the entire schedule.
And to complicate matters further, every league is dependent on the other. The transfer market extends around the world and incorporates the structure of every league. International tournaments, too, play a role here, especially with the 2022 World Cup set to be played in the winter.