[Clemente21PIT]

You could take away interleague play, (because it sucks and is confusing), have 16 teams per league, 4 divisions, and a 165 game schedule.

Each team plays their league opponents 11 times, which equals 2, four game series and a one, three game series.

OR

Each team plays division opponents 27 times (nine 3-game series), and plays everybody else in the league 8 times each, (two 4-game series)