First things first. Sorry for the Yuni picture—that was uncalled for.
The former Mariners in this list are actually relevant to their respective teams' playoff hopes.
As fans, we tend to dwell on "the ones that got away," but it's important to remember that for every Mike Morse who goes on to blossom in a new setting, there's a Jeff Clement somewhere else.
There are plenty of ex-Mariners who'll get their shot at a ring this year. Some guys, like Mark Lowe, Willie Bloomquist and Arthur Rhodes, will get glimpses of playing time, while others will be integral parts of their teams' postseason runs.
Some of these guys we will always love, and some we'll always love to hate—but they will all play a major role for their new teams this October.