I hear where you're coming from - I don't like 3+ hour games either. But I don't see that changing, and while I wouldn't be opposed to your idea I don't think it would shorten the game dramatically. There's a couple of things that are going on to contribute to this (IMO): 1) pitchers are throwing (and expected to throw) harder than they did back in the "old days." Either that, or players or just coming to the big leagues with more fragile arms (and I don't think that's the case). Harder throwing means more wear and tear on the arm which means longer recovery times which means the need for a larger pitching staff. I would love to go back to having a 4-man rotation and 15 players on the bench, but it ain't happening. 2) With the advent of advanced statistics, batters are getting smarter and have learned to work at-bats better, hence the longer games. It used to be if it was in the strike zone you hacked at it; now, it has to be "your pitch" or you lay off or foul it off. P.S. These are just my impressions from watching the game now compared to watching it 40 years ago. I have not tried to evaluate my thoughts by pouring through a batch of statistics, nor am I going to try to (I have better things to do with my life). Stat-heads are welcome to refute me or ignore me as they wish - I'll sleep just fine either way.