Interleague Play use to be a marvel to be seen. Now it is stale and old. No one wants to see that anymore, and Major League baseball needs to fix it.
How? Well, it is a complicated matter.
First, each team should play their natural rivals (e.g. St. Louis Cardinals and Kansas City Royals, or Chicago Cubs and Chicago White Sox) once a season, but rotate home field between the two teams each season. Then, throw in a second series against a team from the other league that is not the natural rival.