Jose Valverde as a league leader wasn't so much as a surprise to me as the fact that he did it three times with three different team.
As you can see, Valverde led the National League in Saves in 2007 with 47 as a member of the Arizona Diamondbacks. After being traded to the Astros in the offseason, he followed up with a National League leading 44 Saves in 2008. After two lackluster seasons, Valverde returned to dominance in the American League with 49 Saves and pitching in 75 Games.
And now, he has gone from league leader in multiple categories to free agent with no team near the end of Spring Training. I'm sure he'll find a team soon but it'll tough to forget his epic postseason meltdown from last year.