In baseball, one decision that could potentially set a team back years is a bad trade. I'm not talking about moves made at the July 31 deadline, but rather trades that teams make during the offseason so that they may acquire major league ready prospects or veterans who could start contributing immediately and stay on long-term.
While some of these trades have worked out, much like the New York Yankees dealing for Curtis Granderson after the 2009 season, some have also been epic failures. Mention the Mo Vaughn (pictured) trade to New York Mets fans, and they'll cringe while saying he ate all the money the team paid him.
That being said, seeing as how this is the offseason and some trades are rumored to be in the mix for some teams, let's go through history and look at every team's worst offseason trade of all time.