I'm not sure how the trade deadline got to be on July 31st. I know that it has been July 31st since 1986, and before that it was June 15th. I just don't know why the league decided to change the date, and why July 31st was picked.

Here's what I do know. Two changes have happened since the 1986 season.

1. MLB moved to a three division and wild card system, doubling the amount of teams that would make the playoffs.

2. MLB much later added a second wild card team.

The result of this is that you have more opportunities to make the playoffs. Because you have more opportunities, you're going to see more teams with a shot, even if those teams aren't even good teams. Take today's trade rumor. The San Francisco Giants are 45-51. They rank 4th in their division. There are 20 teams in the...

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