I think the biggest issue with the length of the game is the commercial breaks. The length of the breaks during the postseason games was beyond ridiculous. I know that MLB and the networks are not going to get rid of their commercials, but that is the biggest culprit.

The pitching changes in the later innings (which leads to more commercial breaks) is another big culprit. I read a suggestion somewhere to require all relievers to pitch to a minimum of 3 batters or maybe a minimum pitch count of 30 pitches, whichever comes first, unless there is an injury. I would be on board with that rule.

I also like the suggestion that defenders have to play withing certain zones, like the SS has to play on the left side of 2nd base.