Mets Relief Corps Win Probability

Every time a Mets pitcher comes in, the Mets chances of winning decrease, to the tune of about 5.7%. This is as you could imagine, the worst in the Majors. We calculate this using WPA (Wins Probability Added, found on Fangraphs) which in it's simplest terms gives you a percentage increase or decrease of winning a game when a player appears. The next closes team to the Met is the Sillies who have a WPA of 4.12 well over a point better than the Mets.The Mets are one of only 12 teams with a negative WPA for its relievers. Let's take a look at the individual players:

Name	G	IP	WPA
Tim Byrdak	50	27.1	0.41
Josh Edgin	6	5.1	0.08
Jeremy Hefner	9	16.2	-0.19
Pedro Beato	6	4	-0.28
Miguel Batista	25	25.2	-0.45
Frank Francisco	31	29	-0.49
Ramon Ramirez	32	39.1	-0.63
Elvin Ramirez	6	7.1	-0.7
Manny Acosta	19	22	-0.96
Bobby Parnell	44	39.2	-0.97
Jon Rauch	41	34.1	-1.21

The only players we have exert a positive influence on a game they enter are Byrdak and Edgin with Edgin having so few appearances to count for much. Rach and Parnell are both at the bottom of the list and provide the greatest increased chance of a Mets loss when appearing. Nothing shocking here but sometimes it helps illuminate what we see on the field when it is quantified, long story short, our bullpen sucks.