^^ It might not look like it, but that's a link up there.
The plight of the NL seems rooted in a chain of events that began in 1973 when the AL adopted the designated-hitter rule -- which allows for the pitchers to be replaced in the batting order by a full-time hitter who doesn't play in the field. The disparity was spurred by new ballpark construction; an unprecedented crop of young power hitters who, for various reasons, almost all fell to the AL; a series of disastrous trades and free-agent signings by NL teams; and a tradition of innovation in the AL that began in the mid-1990s with the Oakland A's.
Now normally I'd make this a Fanshot, but we know no one reads those, and also I'm hoping there can be a lively discussion about the article. Hat tip to Beyond the Box Score.