Help me understand baseball uniforms.

Years ago -- in the 1970s -- I used to watch baseball on a little TV, and I thought the players looked great. Last night, I checked out a little of game 1 of the World Series. I don't think it was just the extra sharpness of HDTV:

The players look like hell! When did they stop wearing stockings and knickers? Those long pants look like pajamas. I remember tight pants. These are all baggy. What a bunch of slobs! And look at all that litter in the dugout. And all the nutshells in front of the dugout. Ugh! The aesthetics!

In the comments, Bart Hall wrote:

One reason for "baggy" pants is that any pitch brushing the uniform in any way is called as a hit batter, and most of the strike zone is down in the pants region. Even an ankle-high pitch brushing the pants gets a trip to first base.

Well, fine then. How about adapting this look for the ball park?