Just as a (absurd) hypothetical, suppose defenses started running screens on batters, lining up infielders so that they would obstruct the batter's view of the pitcher. The shortstop, or even the left fielder for a LH pull hitter, could stand roughly where an L screen is placed during batting practice. What would your thoughts be on that as a fan? I guess my take is that other sports have positioning rules (football has illegal formations, hockey has offsides and restrictions on where the goalie can skate before a whistle is blown), so I don't see any particularly compelling reason not to implement some sort of positioning restrictions on the baseball diamond. Leave plenty of flexibility to take advantage of hitters' tendencies, sure, but aren't some of the alignments we actually see defenses take bordering on the absurd? Just a thought..