Addressing the many needs

The trading deadline is less than three weeks away, and there's still not much separation in the standings, with nine AL teams still legitimately in one race or another and about a dozen NL teams still in their races. While I'm giving my opinions on the needs of each contending club as the trade deadline approaches, it's important to recognize that even the most active club typically addresses only one or two holes -- and this year's trade market is not a promising one for major additions.

Note: Any references to games behind refer to the loss column, which is the only games-behind figure that matters (and it's the figure that is used to calculate a magic number).